Home / 1,298,791,347.60-1,948,462,680.60-425,328,197.52

Finding the Fourth Proportional to 1,298,791,347.60, 1,948,462,680.60 and 425,328,197.52

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Solution

The fourth proportional to 1,298,791,347.60, 1,948,462,680.60 and 425,328,197.52 is: 638,082,569.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,791,347.60 : 1,948,462,680.60 = 425,328,197.52 : x
  2. Step 2: Convert to fraction form
    1,298,791,347.60/1,948,462,680.60 = 425,328,197.52/x
  3. Step 3: Cross multiply
    1,298,791,347.60x = 1,948,462,680.60 × 425,328,197.52
  4. Step 4: Simplify right side
    1,298,791,347.60x = 828,736,119,874,585,344
  5. Step 5: Solve for x
    x = 828,736,119,874,585,344/1,298,791,347.60
  6. Step 6: Final answer
    x = 638,082,569.16

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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.