Home / 147,420,068.40-221,130,102.60-145,506,880.80

Finding the Fourth Proportional to 147,420,068.40, 221,130,102.60 and 145,506,880.80

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Solution

The fourth proportional to 147,420,068.40, 221,130,102.60 and 145,506,880.80 is: 218,260,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,420,068.40 : 221,130,102.60 = 145,506,880.80 : x
  2. Step 2: Convert to fraction form
    147,420,068.40/221,130,102.60 = 145,506,880.80/x
  3. Step 3: Cross multiply
    147,420,068.40x = 221,130,102.60 × 145,506,880.80
  4. Step 4: Simplify right side
    147,420,068.40x = 32,175,951,480,309,972
  5. Step 5: Solve for x
    x = 32,175,951,480,309,972/147,420,068.40
  6. Step 6: Final answer
    x = 218,260,321.20

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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.