Home / 113,570,999.20-170,356,498.80-72,756,330.40

Finding the Fourth Proportional to 113,570,999.20, 170,356,498.80 and 72,756,330.40

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Solution

The fourth proportional to 113,570,999.20, 170,356,498.80 and 72,756,330.40 is: 109,134,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,570,999.20 : 170,356,498.80 = 72,756,330.40 : x
  2. Step 2: Convert to fraction form
    113,570,999.20/170,356,498.80 = 72,756,330.40/x
  3. Step 3: Cross multiply
    113,570,999.20x = 170,356,498.80 × 72,756,330.40
  4. Step 4: Simplify right side
    113,570,999.20x = 12,394,513,712,480,006
  5. Step 5: Solve for x
    x = 12,394,513,712,480,006/113,570,999.20
  6. Step 6: Final answer
    x = 109,134,495.60

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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.