Home / 165,278,077.60-247,633,681.20-78,830,341.60

Finding the Fourth Proportional to 165,278,077.60, 247,633,681.20 and 78,830,341.60

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Solution

The fourth proportional to 165,278,077.60, 247,633,681.20 and 78,830,341.60 is: 118,110,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,278,077.60 : 247,633,681.20 = 78,830,341.60 : x
  2. Step 2: Convert to fraction form
    165,278,077.60/247,633,681.20 = 78,830,341.60/x
  3. Step 3: Cross multiply
    165,278,077.60x = 247,633,681.20 × 78,830,341.60
  4. Step 4: Simplify right side
    165,278,077.60x = 19,521,047,680,661,496
  5. Step 5: Solve for x
    x = 19,521,047,680,661,496/165,278,077.60
  6. Step 6: Final answer
    x = 118,110,326.33

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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.