Home / 485,017,500.45-727,515,746.43-135,254,235.93

Finding the Fourth Proportional to 485,017,500.45, 727,515,746.43 and 135,254,235.93

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Solution

The fourth proportional to 485,017,500.45, 727,515,746.43 and 135,254,235.93 is: 202,878,424.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,017,500.45 : 727,515,746.43 = 135,254,235.93 : x
  2. Step 2: Convert to fraction form
    485,017,500.45/727,515,746.43 = 135,254,235.93/x
  3. Step 3: Cross multiply
    485,017,500.45x = 727,515,746.43 × 135,254,235.93
  4. Step 4: Simplify right side
    485,017,500.45x = 98,399,586,406,119,424
  5. Step 5: Solve for x
    x = 98,399,586,406,119,424/485,017,500.45
  6. Step 6: Final answer
    x = 202,878,424.62

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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.