Home / 1,508,020,785.47-2,081,087,836.13-829,915,810.66

Finding the Fourth Proportional to 1,508,020,785.47, 2,081,087,836.13 and 829,915,810.66

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Solution

The fourth proportional to 1,508,020,785.47, 2,081,087,836.13 and 829,915,810.66 is: 1,145,294,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508,020,785.47 : 2,081,087,836.13 = 829,915,810.66 : x
  2. Step 2: Convert to fraction form
    1,508,020,785.47/2,081,087,836.13 = 829,915,810.66/x
  3. Step 3: Cross multiply
    1,508,020,785.47x = 2,081,087,836.13 × 829,915,810.66
  4. Step 4: Simplify right side
    1,508,020,785.47x = 1,727,127,698,573,366,272
  5. Step 5: Solve for x
    x = 1,727,127,698,573,366,272/1,508,020,785.47
  6. Step 6: Final answer
    x = 1,145,294,358.81

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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.