Home / 79,263,005.40-118,894,508.10-66,508,421.40

Finding the Fourth Proportional to 79,263,005.40, 118,894,508.10 and 66,508,421.40

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Solution

The fourth proportional to 79,263,005.40, 118,894,508.10 and 66,508,421.40 is: 99,762,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,263,005.40 : 118,894,508.10 = 66,508,421.40 : x
  2. Step 2: Convert to fraction form
    79,263,005.40/118,894,508.10 = 66,508,421.40/x
  3. Step 3: Cross multiply
    79,263,005.40x = 118,894,508.10 × 66,508,421.40
  4. Step 4: Simplify right side
    79,263,005.40x = 7,907,486,046,860,513
  5. Step 5: Solve for x
    x = 7,907,486,046,860,513/79,263,005.40
  6. Step 6: Final answer
    x = 99,762,632.10

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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.