Home / 838,692,752.12-1,157,399,505.62-462,341,080.24

Finding the Fourth Proportional to 838,692,752.12, 1,157,399,505.62 and 462,341,080.24

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Solution

The fourth proportional to 838,692,752.12, 1,157,399,505.62 and 462,341,080.24 is: 638,032,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,692,752.12 : 1,157,399,505.62 = 462,341,080.24 : x
  2. Step 2: Convert to fraction form
    838,692,752.12/1,157,399,505.62 = 462,341,080.24/x
  3. Step 3: Cross multiply
    838,692,752.12x = 1,157,399,505.62 × 462,341,080.24
  4. Step 4: Simplify right side
    838,692,752.12x = 535,113,337,697,592,704
  5. Step 5: Solve for x
    x = 535,113,337,697,592,704/838,692,752.12
  6. Step 6: Final answer
    x = 638,032,624.40

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1.5x scale

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.