Home / 8,709,401,314.80-13,064,101,972.20-7,811,478,601.20

Finding the Fourth Proportional to 8,709,401,314.80, 13,064,101,972.20 and 7,811,478,601.20

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Solution

The fourth proportional to 8,709,401,314.80, 13,064,101,972.20 and 7,811,478,601.20 is: 11,717,217,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709,401,314.80 : 13,064,101,972.20 = 7,811,478,601.20 : x
  2. Step 2: Convert to fraction form
    8,709,401,314.80/13,064,101,972.20 = 7,811,478,601.20/x
  3. Step 3: Cross multiply
    8,709,401,314.80x = 13,064,101,972.20 × 7,811,478,601.20
  4. Step 4: Simplify right side
    8,709,401,314.80x = 102,049,952,999,735,017,472
  5. Step 5: Solve for x
    x = 102,049,952,999,735,017,472/8,709,401,314.80
  6. Step 6: Final answer
    x = 11,717,217,901.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.