Home / 885,736,353.80-1,328,604,530.70-516,892,680.20

Finding the Fourth Proportional to 885,736,353.80, 1,328,604,530.70 and 516,892,680.20

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Solution

The fourth proportional to 885,736,353.80, 1,328,604,530.70 and 516,892,680.20 is: 775,339,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,353.80 : 1,328,604,530.70 = 516,892,680.20 : x
  2. Step 2: Convert to fraction form
    885,736,353.80/1,328,604,530.70 = 516,892,680.20/x
  3. Step 3: Cross multiply
    885,736,353.80x = 1,328,604,530.70 × 516,892,680.20
  4. Step 4: Simplify right side
    885,736,353.80x = 686,745,956,799,386,240
  5. Step 5: Solve for x
    x = 686,745,956,799,386,240/885,736,353.80
  6. Step 6: Final answer
    x = 775,339,020.30

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Double scale
Find fourth proportional to 885,736,354.80, 1,328,604,532.20 and 516,892,681.20
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.