Home / 81,565,980.04-112,482,810-54,803,830.68

Finding the Fourth Proportional to 81,565,980.04, 112,482,810 and 54,803,830.68

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Solution

The fourth proportional to 81,565,980.04, 112,482,810 and 54,803,830.68 is: 75,576,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,565,980.04 : 112,482,810 = 54,803,830.68 : x
  2. Step 2: Convert to fraction form
    81,565,980.04/112,482,810 = 54,803,830.68/x
  3. Step 3: Cross multiply
    81,565,980.04x = 112,482,810 × 54,803,830.68
  4. Step 4: Simplify right side
    81,565,980.04x = 6,164,488,873,650,611
  5. Step 5: Solve for x
    x = 6,164,488,873,650,611/81,565,980.04
  6. Step 6: Final answer
    x = 75,576,715.57

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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.