Home / 1,273,812,810.62-1,757,918,239.72-716,931,926.78

Finding the Fourth Proportional to 1,273,812,810.62, 1,757,918,239.72 and 716,931,926.78

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Solution

The fourth proportional to 1,273,812,810.62, 1,757,918,239.72 and 716,931,926.78 is: 989,397,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,812,810.62 : 1,757,918,239.72 = 716,931,926.78 : x
  2. Step 2: Convert to fraction form
    1,273,812,810.62/1,757,918,239.72 = 716,931,926.78/x
  3. Step 3: Cross multiply
    1,273,812,810.62x = 1,757,918,239.72 × 716,931,926.78
  4. Step 4: Simplify right side
    1,273,812,810.62x = 1,260,307,710,713,583,616
  5. Step 5: Solve for x
    x = 1,260,307,710,713,583,616/1,273,812,810.62
  6. Step 6: Final answer
    x = 989,397,892.85

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Double scale
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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.