Home / 145,280,996.80-217,921,495.20-64,416,126.40

Finding the Fourth Proportional to 145,280,996.80, 217,921,495.20 and 64,416,126.40

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Solution

The fourth proportional to 145,280,996.80, 217,921,495.20 and 64,416,126.40 is: 96,624,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,280,996.80 : 217,921,495.20 = 64,416,126.40 : x
  2. Step 2: Convert to fraction form
    145,280,996.80/217,921,495.20 = 64,416,126.40/x
  3. Step 3: Cross multiply
    145,280,996.80x = 217,921,495.20 × 64,416,126.40
  4. Step 4: Simplify right side
    145,280,996.80x = 14,037,658,580,080,192
  5. Step 5: Solve for x
    x = 14,037,658,580,080,192/145,280,996.80
  6. Step 6: Final answer
    x = 96,624,189.60

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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.