Home / 260,032,129.32-390,182,294.34-121,871,772.48

Finding the Fourth Proportional to 260,032,129.32, 390,182,294.34 and 121,871,772.48

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Solution

The fourth proportional to 260,032,129.32, 390,182,294.34 and 121,871,772.48 is: 182,870,508.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,032,129.32 : 390,182,294.34 = 121,871,772.48 : x
  2. Step 2: Convert to fraction form
    260,032,129.32/390,182,294.34 = 121,871,772.48/x
  3. Step 3: Cross multiply
    260,032,129.32x = 390,182,294.34 × 121,871,772.48
  4. Step 4: Simplify right side
    260,032,129.32x = 47,552,207,801,528,872
  5. Step 5: Solve for x
    x = 47,552,207,801,528,872/260,032,129.32
  6. Step 6: Final answer
    x = 182,870,508.83

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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.