Home / 30,341,702.40-45,512,553.60-20,138,035.20

Finding the Fourth Proportional to 30,341,702.40, 45,512,553.60 and 20,138,035.20

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Solution

The fourth proportional to 30,341,702.40, 45,512,553.60 and 20,138,035.20 is: 30,207,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341,702.40 : 45,512,553.60 = 20,138,035.20 : x
  2. Step 2: Convert to fraction form
    30,341,702.40/45,512,553.60 = 20,138,035.20/x
  3. Step 3: Cross multiply
    30,341,702.40x = 45,512,553.60 × 20,138,035.20
  4. Step 4: Simplify right side
    30,341,702.40x = 916,533,406,438,686.75
  5. Step 5: Solve for x
    x = 916,533,406,438,686.75/30,341,702.40
  6. Step 6: Final answer
    x = 30,207,052.80

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1.5x scale

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.