Home / 145,224,000.40-217,836,000.60-77,031,590.80

Finding the Fourth Proportional to 145,224,000.40, 217,836,000.60 and 77,031,590.80

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Solution

The fourth proportional to 145,224,000.40, 217,836,000.60 and 77,031,590.80 is: 115,547,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,224,000.40 : 217,836,000.60 = 77,031,590.80 : x
  2. Step 2: Convert to fraction form
    145,224,000.40/217,836,000.60 = 77,031,590.80/x
  3. Step 3: Cross multiply
    145,224,000.40x = 217,836,000.60 × 77,031,590.80
  4. Step 4: Simplify right side
    145,224,000.40x = 16,780,253,659,727,754
  5. Step 5: Solve for x
    x = 16,780,253,659,727,754/145,224,000.40
  6. Step 6: Final answer
    x = 115,547,386.20

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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.