Home / 130,741,294.86-180,420,785.91-72,009,429.30

Finding the Fourth Proportional to 130,741,294.86, 180,420,785.91 and 72,009,429.30

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Solution

The fourth proportional to 130,741,294.86, 180,420,785.91 and 72,009,429.30 is: 99,371,800.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,741,294.86 : 180,420,785.91 = 72,009,429.30 : x
  2. Step 2: Convert to fraction form
    130,741,294.86/180,420,785.91 = 72,009,429.30/x
  3. Step 3: Cross multiply
    130,741,294.86x = 180,420,785.91 × 72,009,429.30
  4. Step 4: Simplify right side
    130,741,294.86x = 12,991,997,827,236,580
  5. Step 5: Solve for x
    x = 12,991,997,827,236,580/130,741,294.86
  6. Step 6: Final answer
    x = 99,371,800.17

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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.