Home / 78,917,378.80-118,376,068.20-44,943,516.40

Finding the Fourth Proportional to 78,917,378.80, 118,376,068.20 and 44,943,516.40

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Solution

The fourth proportional to 78,917,378.80, 118,376,068.20 and 44,943,516.40 is: 67,415,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,917,378.80 : 118,376,068.20 = 44,943,516.40 : x
  2. Step 2: Convert to fraction form
    78,917,378.80/118,376,068.20 = 44,943,516.40/x
  3. Step 3: Cross multiply
    78,917,378.80x = 118,376,068.20 × 44,943,516.40
  4. Step 4: Simplify right side
    78,917,378.80x = 5,320,236,762,514,218
  5. Step 5: Solve for x
    x = 5,320,236,762,514,218/78,917,378.80
  6. Step 6: Final answer
    x = 67,415,274.60

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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.