Home / 78,731,999.80-118,097,999.70-24,153,009.10

Finding the Fourth Proportional to 78,731,999.80, 118,097,999.70 and 24,153,009.10

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Solution

The fourth proportional to 78,731,999.80, 118,097,999.70 and 24,153,009.10 is: 36,229,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,731,999.80 : 118,097,999.70 = 24,153,009.10 : x
  2. Step 2: Convert to fraction form
    78,731,999.80/118,097,999.70 = 24,153,009.10/x
  3. Step 3: Cross multiply
    78,731,999.80x = 118,097,999.70 × 24,153,009.10
  4. Step 4: Simplify right side
    78,731,999.80x = 2,852,422,061,445,897.50
  5. Step 5: Solve for x
    x = 2,852,422,061,445,897.50/78,731,999.80
  6. Step 6: Final answer
    x = 36,229,513.65

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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.