Home / 121,842,487.85-168,144,914.41-74,775,969.74

Finding the Fourth Proportional to 121,842,487.85, 168,144,914.41 and 74,775,969.74

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Solution

The fourth proportional to 121,842,487.85, 168,144,914.41 and 74,775,969.74 is: 103,192,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,842,487.85 : 168,144,914.41 = 74,775,969.74 : x
  2. Step 2: Convert to fraction form
    121,842,487.85/168,144,914.41 = 74,775,969.74/x
  3. Step 3: Cross multiply
    121,842,487.85x = 168,144,914.41 × 74,775,969.74
  4. Step 4: Simplify right side
    121,842,487.85x = 12,573,199,030,829,386
  5. Step 5: Solve for x
    x = 12,573,199,030,829,386/121,842,487.85
  6. Step 6: Final answer
    x = 103,192,238.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.