Home / 638,842,023.60-881,604,649.20-345,486,591.60

Finding the Fourth Proportional to 638,842,023.60, 881,604,649.20 and 345,486,591.60

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Solution

The fourth proportional to 638,842,023.60, 881,604,649.20 and 345,486,591.60 is: 476,772,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,842,023.60 : 881,604,649.20 = 345,486,591.60 : x
  2. Step 2: Convert to fraction form
    638,842,023.60/881,604,649.20 = 345,486,591.60/x
  3. Step 3: Cross multiply
    638,842,023.60x = 881,604,649.20 × 345,486,591.60
  4. Step 4: Simplify right side
    638,842,023.60x = 304,582,585,390,821,696
  5. Step 5: Solve for x
    x = 304,582,585,390,821,696/638,842,023.60
  6. Step 6: Final answer
    x = 476,772,933.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.