Home / 111,254,702.40-166,882,053.60-72,938,462.40

Finding the Fourth Proportional to 111,254,702.40, 166,882,053.60 and 72,938,462.40

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Solution

The fourth proportional to 111,254,702.40, 166,882,053.60 and 72,938,462.40 is: 109,407,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,254,702.40 : 166,882,053.60 = 72,938,462.40 : x
  2. Step 2: Convert to fraction form
    111,254,702.40/166,882,053.60 = 72,938,462.40/x
  3. Step 3: Cross multiply
    111,254,702.40x = 166,882,053.60 × 72,938,462.40
  4. Step 4: Simplify right side
    111,254,702.40x = 12,172,120,391,738,386
  5. Step 5: Solve for x
    x = 12,172,120,391,738,386/111,254,702.40
  6. Step 6: Final answer
    x = 109,407,693.60

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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.