Home / 1,288,869,385.60-1,933,304,078.40-368,775,740.80

Finding the Fourth Proportional to 1,288,869,385.60, 1,933,304,078.40 and 368,775,740.80

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Solution

The fourth proportional to 1,288,869,385.60, 1,933,304,078.40 and 368,775,740.80 is: 553,163,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,869,385.60 : 1,933,304,078.40 = 368,775,740.80 : x
  2. Step 2: Convert to fraction form
    1,288,869,385.60/1,933,304,078.40 = 368,775,740.80/x
  3. Step 3: Cross multiply
    1,288,869,385.60x = 1,933,304,078.40 × 368,775,740.80
  4. Step 4: Simplify right side
    1,288,869,385.60x = 712,955,643,703,621,376
  5. Step 5: Solve for x
    x = 712,955,643,703,621,376/1,288,869,385.60
  6. Step 6: Final answer
    x = 553,163,611.20

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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.