Home / 15,359,237.55-21,195,820.08-8,390,011.77

Finding the Fourth Proportional to 15,359,237.55, 21,195,820.08 and 8,390,011.77

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Solution

The fourth proportional to 15,359,237.55, 21,195,820.08 and 8,390,011.77 is: 11,578,255.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,359,237.55 : 21,195,820.08 = 8,390,011.77 : x
  2. Step 2: Convert to fraction form
    15,359,237.55/21,195,820.08 = 8,390,011.77/x
  3. Step 3: Cross multiply
    15,359,237.55x = 21,195,820.08 × 8,390,011.77
  4. Step 4: Simplify right side
    15,359,237.55x = 177,833,179,946,002.31
  5. Step 5: Solve for x
    x = 177,833,179,946,002.31/15,359,237.55
  6. Step 6: Final answer
    x = 11,578,255.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.