Home / 1,128,710,772.78-1,693,284,192.58-429,148,516.14

Finding the Fourth Proportional to 1,128,710,772.78, 1,693,284,192.58 and 429,148,516.14

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Solution

The fourth proportional to 1,128,710,772.78, 1,693,284,192.58 and 429,148,516.14 is: 643,805,672.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,710,772.78 : 1,693,284,192.58 = 429,148,516.14 : x
  2. Step 2: Convert to fraction form
    1,128,710,772.78/1,693,284,192.58 = 429,148,516.14/x
  3. Step 3: Cross multiply
    1,128,710,772.78x = 1,693,284,192.58 × 429,148,516.14
  4. Step 4: Simplify right side
    1,128,710,772.78x = 726,670,398,649,024,896
  5. Step 5: Solve for x
    x = 726,670,398,649,024,896/1,128,710,772.78
  6. Step 6: Final answer
    x = 643,805,672.96

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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.