Home / 85,212,001.80-127,671,036.30-39,680,411.40

Finding the Fourth Proportional to 85,212,001.80, 127,671,036.30 and 39,680,411.40

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Solution

The fourth proportional to 85,212,001.80, 127,671,036.30 and 39,680,411.40 is: 59,452,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212,001.80 : 127,671,036.30 = 39,680,411.40 : x
  2. Step 2: Convert to fraction form
    85,212,001.80/127,671,036.30 = 39,680,411.40/x
  3. Step 3: Cross multiply
    85,212,001.80x = 127,671,036.30 × 39,680,411.40
  4. Step 4: Simplify right side
    85,212,001.80x = 5,066,039,244,248,334
  5. Step 5: Solve for x
    x = 5,066,039,244,248,334/85,212,001.80
  6. Step 6: Final answer
    x = 59,452,179.71

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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.