Home / 1,990,656,070.40-2,985,984,105.60-536,780,460.80

Finding the Fourth Proportional to 1,990,656,070.40, 2,985,984,105.60 and 536,780,460.80

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Solution

The fourth proportional to 1,990,656,070.40, 2,985,984,105.60 and 536,780,460.80 is: 805,170,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,656,070.40 : 2,985,984,105.60 = 536,780,460.80 : x
  2. Step 2: Convert to fraction form
    1,990,656,070.40/2,985,984,105.60 = 536,780,460.80/x
  3. Step 3: Cross multiply
    1,990,656,070.40x = 2,985,984,105.60 × 536,780,460.80
  4. Step 4: Simplify right side
    1,990,656,070.40x = 1,602,817,924,145,443,840
  5. Step 5: Solve for x
    x = 1,602,817,924,145,443,840/1,990,656,070.40
  6. Step 6: Final answer
    x = 805,170,691.20

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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.