Home / 478,142,455.59-659,485,355.25-316,914,852.69

Finding the Fourth Proportional to 478,142,455.59, 659,485,355.25 and 316,914,852.69

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Solution

The fourth proportional to 478,142,455.59, 659,485,355.25 and 316,914,852.69 is: 437,109,697.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,142,455.59 : 659,485,355.25 = 316,914,852.69 : x
  2. Step 2: Convert to fraction form
    478,142,455.59/659,485,355.25 = 316,914,852.69/x
  3. Step 3: Cross multiply
    478,142,455.59x = 659,485,355.25 × 316,914,852.69
  4. Step 4: Simplify right side
    478,142,455.59x = 209,000,704,210,266,080
  5. Step 5: Solve for x
    x = 209,000,704,210,266,080/478,142,455.59
  6. Step 6: Final answer
    x = 437,109,697.68

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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.