Home / 138,476,569.60-207,733,516.80-47,628,006.40

Finding the Fourth Proportional to 138,476,569.60, 207,733,516.80 and 47,628,006.40

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Solution

The fourth proportional to 138,476,569.60, 207,733,516.80 and 47,628,006.40 is: 71,448,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,476,569.60 : 207,733,516.80 = 47,628,006.40 : x
  2. Step 2: Convert to fraction form
    138,476,569.60/207,733,516.80 = 47,628,006.40/x
  3. Step 3: Cross multiply
    138,476,569.60x = 207,733,516.80 × 47,628,006.40
  4. Step 4: Simplify right side
    138,476,569.60x = 9,893,933,267,644,908
  5. Step 5: Solve for x
    x = 9,893,933,267,644,908/138,476,569.60
  6. Step 6: Final answer
    x = 71,448,428.40

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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.