Home / 128,009,962.14-176,610,503.96-83,335,592.36

Finding the Fourth Proportional to 128,009,962.14, 176,610,503.96 and 83,335,592.36

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Solution

The fourth proportional to 128,009,962.14, 176,610,503.96 and 83,335,592.36 is: 114,974,965.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,962.14 : 176,610,503.96 = 83,335,592.36 : x
  2. Step 2: Convert to fraction form
    128,009,962.14/176,610,503.96 = 83,335,592.36/x
  3. Step 3: Cross multiply
    128,009,962.14x = 176,610,503.96 × 83,335,592.36
  4. Step 4: Simplify right side
    128,009,962.14x = 14,717,940,964,842,082
  5. Step 5: Solve for x
    x = 14,717,940,964,842,082/128,009,962.14
  6. Step 6: Final answer
    x = 114,974,965.37

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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.