Home / 1,120,960,891.80-1,681,441,337.70-291,912,931.80

Finding the Fourth Proportional to 1,120,960,891.80, 1,681,441,337.70 and 291,912,931.80

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Solution

The fourth proportional to 1,120,960,891.80, 1,681,441,337.70 and 291,912,931.80 is: 437,869,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,960,891.80 : 1,681,441,337.70 = 291,912,931.80 : x
  2. Step 2: Convert to fraction form
    1,120,960,891.80/1,681,441,337.70 = 291,912,931.80/x
  3. Step 3: Cross multiply
    1,120,960,891.80x = 1,681,441,337.70 × 291,912,931.80
  4. Step 4: Simplify right side
    1,120,960,891.80x = 490,834,470,537,720,896
  5. Step 5: Solve for x
    x = 490,834,470,537,720,896/1,120,960,891.80
  6. Step 6: Final answer
    x = 437,869,397.70

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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.