Home / 90,288,001.20-135,432,001.80-67,295,924.40

Finding the Fourth Proportional to 90,288,001.20, 135,432,001.80 and 67,295,924.40

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Solution

The fourth proportional to 90,288,001.20, 135,432,001.80 and 67,295,924.40 is: 100,943,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288,001.20 : 135,432,001.80 = 67,295,924.40 : x
  2. Step 2: Convert to fraction form
    90,288,001.20/135,432,001.80 = 67,295,924.40/x
  3. Step 3: Cross multiply
    90,288,001.20x = 135,432,001.80 × 67,295,924.40
  4. Step 4: Simplify right side
    90,288,001.20x = 9,114,021,754,473,466
  5. Step 5: Solve for x
    x = 9,114,021,754,473,466/90,288,001.20
  6. Step 6: Final answer
    x = 100,943,886.60

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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.