Home / 71,817,954.80-99,109,411.80-40,880,116.40

Finding the Fourth Proportional to 71,817,954.80, 99,109,411.80 and 40,880,116.40

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Solution

The fourth proportional to 71,817,954.80, 99,109,411.80 and 40,880,116.40 is: 56,414,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,817,954.80 : 99,109,411.80 = 40,880,116.40 : x
  2. Step 2: Convert to fraction form
    71,817,954.80/99,109,411.80 = 40,880,116.40/x
  3. Step 3: Cross multiply
    71,817,954.80x = 99,109,411.80 × 40,880,116.40
  4. Step 4: Simplify right side
    71,817,954.80x = 4,051,604,290,719,533.50
  5. Step 5: Solve for x
    x = 4,051,604,290,719,533.50/71,817,954.80
  6. Step 6: Final answer
    x = 56,414,921.62

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Why These Related Problems?

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