Home / 78,457,813.32-117,681,955.50-29,264,183.76

Finding the Fourth Proportional to 78,457,813.32, 117,681,955.50 and 29,264,183.76

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Solution

The fourth proportional to 78,457,813.32, 117,681,955.50 and 29,264,183.76 is: 43,894,498.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,457,813.32 : 117,681,955.50 = 29,264,183.76 : x
  2. Step 2: Convert to fraction form
    78,457,813.32/117,681,955.50 = 29,264,183.76/x
  3. Step 3: Cross multiply
    78,457,813.32x = 117,681,955.50 × 29,264,183.76
  4. Step 4: Simplify right side
    78,457,813.32x = 3,443,866,370,988,143
  5. Step 5: Solve for x
    x = 3,443,866,370,988,143/78,457,813.32
  6. Step 6: Final answer
    x = 43,894,498.52

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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.