Home / 142,338,553.60-213,507,830.40-84,895,686.40

Finding the Fourth Proportional to 142,338,553.60, 213,507,830.40 and 84,895,686.40

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Solution

The fourth proportional to 142,338,553.60, 213,507,830.40 and 84,895,686.40 is: 127,343,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,338,553.60 : 213,507,830.40 = 84,895,686.40 : x
  2. Step 2: Convert to fraction form
    142,338,553.60/213,507,830.40 = 84,895,686.40/x
  3. Step 3: Cross multiply
    142,338,553.60x = 213,507,830.40 × 84,895,686.40
  4. Step 4: Simplify right side
    142,338,553.60x = 18,125,893,813,582,788
  5. Step 5: Solve for x
    x = 18,125,893,813,582,788/142,338,553.60
  6. Step 6: Final answer
    x = 127,343,529.60

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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.