Home / 458,428,872.60-687,643,308.90-313,310,050.20

Finding the Fourth Proportional to 458,428,872.60, 687,643,308.90 and 313,310,050.20

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Solution

The fourth proportional to 458,428,872.60, 687,643,308.90 and 313,310,050.20 is: 469,965,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,428,872.60 : 687,643,308.90 = 313,310,050.20 : x
  2. Step 2: Convert to fraction form
    458,428,872.60/687,643,308.90 = 313,310,050.20/x
  3. Step 3: Cross multiply
    458,428,872.60x = 687,643,308.90 × 313,310,050.20
  4. Step 4: Simplify right side
    458,428,872.60x = 215,445,559,631,153,088
  5. Step 5: Solve for x
    x = 215,445,559,631,153,088/458,428,872.60
  6. Step 6: Final answer
    x = 469,965,075.30

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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.