Home / 1,866,312,114.30-2,799,468,171.45-639,072,690.30

Finding the Fourth Proportional to 1,866,312,114.30, 2,799,468,171.45 and 639,072,690.30

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Solution

The fourth proportional to 1,866,312,114.30, 2,799,468,171.45 and 639,072,690.30 is: 958,609,035.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,312,114.30 : 2,799,468,171.45 = 639,072,690.30 : x
  2. Step 2: Convert to fraction form
    1,866,312,114.30/2,799,468,171.45 = 639,072,690.30/x
  3. Step 3: Cross multiply
    1,866,312,114.30x = 2,799,468,171.45 × 639,072,690.30
  4. Step 4: Simplify right side
    1,866,312,114.30x = 1,789,063,655,737,772,800
  5. Step 5: Solve for x
    x = 1,789,063,655,737,772,800/1,866,312,114.30
  6. Step 6: Final answer
    x = 958,609,035.45

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Double scale
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Similar ratio
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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.