Home / 742,873,051.20-1,025,153,317.60-408,338,415.04

Finding the Fourth Proportional to 742,873,051.20, 1,025,153,317.60 and 408,338,415.04

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Solution

The fourth proportional to 742,873,051.20, 1,025,153,317.60 and 408,338,415.04 is: 563,500,695.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,873,051.20 : 1,025,153,317.60 = 408,338,415.04 : x
  2. Step 2: Convert to fraction form
    742,873,051.20/1,025,153,317.60 = 408,338,415.04/x
  3. Step 3: Cross multiply
    742,873,051.20x = 1,025,153,317.60 × 408,338,415.04
  4. Step 4: Simplify right side
    742,873,051.20x = 418,609,480,881,781,760
  5. Step 5: Solve for x
    x = 418,609,480,881,781,760/742,873,051.20
  6. Step 6: Final answer
    x = 563,500,695.31

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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.