Home / 65,573,431.04-90,549,575.52-40,836,095.84

Finding the Fourth Proportional to 65,573,431.04, 90,549,575.52 and 40,836,095.84

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Solution

The fourth proportional to 65,573,431.04, 90,549,575.52 and 40,836,095.84 is: 56,390,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,573,431.04 : 90,549,575.52 = 40,836,095.84 : x
  2. Step 2: Convert to fraction form
    65,573,431.04/90,549,575.52 = 40,836,095.84/x
  3. Step 3: Cross multiply
    65,573,431.04x = 90,549,575.52 × 40,836,095.84
  4. Step 4: Simplify right side
    65,573,431.04x = 3,697,691,144,206,038
  5. Step 5: Solve for x
    x = 3,697,691,144,206,038/65,573,431.04
  6. Step 6: Final answer
    x = 56,390,081.86

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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.