Home / 1,119,746,269.60-1,679,619,404.40-392,808,464.80

Finding the Fourth Proportional to 1,119,746,269.60, 1,679,619,404.40 and 392,808,464.80

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Solution

The fourth proportional to 1,119,746,269.60, 1,679,619,404.40 and 392,808,464.80 is: 589,212,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,746,269.60 : 1,679,619,404.40 = 392,808,464.80 : x
  2. Step 2: Convert to fraction form
    1,119,746,269.60/1,679,619,404.40 = 392,808,464.80/x
  3. Step 3: Cross multiply
    1,119,746,269.60x = 1,679,619,404.40 × 392,808,464.80
  4. Step 4: Simplify right side
    1,119,746,269.60x = 659,768,719,690,654,464
  5. Step 5: Solve for x
    x = 659,768,719,690,654,464/1,119,746,269.60
  6. Step 6: Final answer
    x = 589,212,697.20

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Double scale
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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.