Home / 82,788,008.40-124,182,012.60-28,262,161.80

Finding the Fourth Proportional to 82,788,008.40, 124,182,012.60 and 28,262,161.80

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Solution

The fourth proportional to 82,788,008.40, 124,182,012.60 and 28,262,161.80 is: 42,393,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,788,008.40 : 124,182,012.60 = 28,262,161.80 : x
  2. Step 2: Convert to fraction form
    82,788,008.40/124,182,012.60 = 28,262,161.80/x
  3. Step 3: Cross multiply
    82,788,008.40x = 124,182,012.60 × 28,262,161.80
  4. Step 4: Simplify right side
    82,788,008.40x = 3,509,652,132,750,838.50
  5. Step 5: Solve for x
    x = 3,509,652,132,750,838.50/82,788,008.40
  6. Step 6: Final answer
    x = 42,393,242.70

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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.