Home / 786,640,053.40-1,085,563,110.18-434,215,950.28

Finding the Fourth Proportional to 786,640,053.40, 1,085,563,110.18 and 434,215,950.28

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Solution

The fourth proportional to 786,640,053.40, 1,085,563,110.18 and 434,215,950.28 is: 599,217,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,640,053.40 : 1,085,563,110.18 = 434,215,950.28 : x
  2. Step 2: Convert to fraction form
    786,640,053.40/1,085,563,110.18 = 434,215,950.28/x
  3. Step 3: Cross multiply
    786,640,053.40x = 1,085,563,110.18 × 434,215,950.28
  4. Step 4: Simplify right side
    786,640,053.40x = 471,368,817,475,721,024
  5. Step 5: Solve for x
    x = 471,368,817,475,721,024/786,640,053.40
  6. Step 6: Final answer
    x = 599,217,921.13

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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.