Home / 12,931,205,855.70-19,396,808,783.55-9,831,841,943.70

Finding the Fourth Proportional to 12,931,205,855.70, 19,396,808,783.55 and 9,831,841,943.70

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Solution

The fourth proportional to 12,931,205,855.70, 19,396,808,783.55 and 9,831,841,943.70 is: 14,747,762,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931,205,855.70 : 19,396,808,783.55 = 9,831,841,943.70 : x
  2. Step 2: Convert to fraction form
    12,931,205,855.70/19,396,808,783.55 = 9,831,841,943.70/x
  3. Step 3: Cross multiply
    12,931,205,855.70x = 19,396,808,783.55 × 9,831,841,943.70
  4. Step 4: Simplify right side
    12,931,205,855.70x = 190,706,358,172,035,481,600
  5. Step 5: Solve for x
    x = 190,706,358,172,035,481,600/12,931,205,855.70
  6. Step 6: Final answer
    x = 14,747,762,915.55

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Double scale
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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.