Home / 82,912,209.40-124,368,314.10-39,759,200.20

Finding the Fourth Proportional to 82,912,209.40, 124,368,314.10 and 39,759,200.20

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Solution

The fourth proportional to 82,912,209.40, 124,368,314.10 and 39,759,200.20 is: 59,638,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,912,209.40 : 124,368,314.10 = 39,759,200.20 : x
  2. Step 2: Convert to fraction form
    82,912,209.40/124,368,314.10 = 39,759,200.20/x
  3. Step 3: Cross multiply
    82,912,209.40x = 124,368,314.10 × 39,759,200.20
  4. Step 4: Simplify right side
    82,912,209.40x = 4,944,784,698,838,383
  5. Step 5: Solve for x
    x = 4,944,784,698,838,383/82,912,209.40
  6. Step 6: Final answer
    x = 59,638,800.30

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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.