Home / 1,253,111,810.12-1,729,192,913.88-724,509,711.08

Finding the Fourth Proportional to 1,253,111,810.12, 1,729,192,913.88 and 724,509,711.08

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Solution

The fourth proportional to 1,253,111,810.12, 1,729,192,913.88 and 724,509,711.08 is: 999,764,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,111,810.12 : 1,729,192,913.88 = 724,509,711.08 : x
  2. Step 2: Convert to fraction form
    1,253,111,810.12/1,729,192,913.88 = 724,509,711.08/x
  3. Step 3: Cross multiply
    1,253,111,810.12x = 1,729,192,913.88 × 724,509,711.08
  4. Step 4: Simplify right side
    1,253,111,810.12x = 1,252,817,058,428,136,448
  5. Step 5: Solve for x
    x = 1,252,817,058,428,136,448/1,253,111,810.12
  6. Step 6: Final answer
    x = 999,764,784.21

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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.