Home / 52,186,669.20-78,280,003.80-31,779,334.80

Finding the Fourth Proportional to 52,186,669.20, 78,280,003.80 and 31,779,334.80

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Solution

The fourth proportional to 52,186,669.20, 78,280,003.80 and 31,779,334.80 is: 47,669,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,186,669.20 : 78,280,003.80 = 31,779,334.80 : x
  2. Step 2: Convert to fraction form
    52,186,669.20/78,280,003.80 = 31,779,334.80/x
  3. Step 3: Cross multiply
    52,186,669.20x = 78,280,003.80 × 31,779,334.80
  4. Step 4: Simplify right side
    52,186,669.20x = 2,487,686,448,905,472
  5. Step 5: Solve for x
    x = 2,487,686,448,905,472/52,186,669.20
  6. Step 6: Final answer
    x = 47,669,002.20

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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.