Home / 742,873,077.08-1,025,153,353.72-408,338,441.20

Finding the Fourth Proportional to 742,873,077.08, 1,025,153,353.72 and 408,338,441.20

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Solution

The fourth proportional to 742,873,077.08, 1,025,153,353.72 and 408,338,441.20 is: 563,500,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,873,077.08 : 1,025,153,353.72 = 408,338,441.20 : x
  2. Step 2: Convert to fraction form
    742,873,077.08/1,025,153,353.72 = 408,338,441.20/x
  3. Step 3: Cross multiply
    742,873,077.08x = 1,025,153,353.72 × 408,338,441.20
  4. Step 4: Simplify right side
    742,873,077.08x = 418,609,522,448,977,024
  5. Step 5: Solve for x
    x = 418,609,522,448,977,024/742,873,077.08
  6. Step 6: Final answer
    x = 563,500,731.64

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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.