Home / 147,042,020.40-220,563,030.60-66,420,452.40

Finding the Fourth Proportional to 147,042,020.40, 220,563,030.60 and 66,420,452.40

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Solution

The fourth proportional to 147,042,020.40, 220,563,030.60 and 66,420,452.40 is: 99,630,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,042,020.40 : 220,563,030.60 = 66,420,452.40 : x
  2. Step 2: Convert to fraction form
    147,042,020.40/220,563,030.60 = 66,420,452.40/x
  3. Step 3: Cross multiply
    147,042,020.40x = 220,563,030.60 × 66,420,452.40
  4. Step 4: Simplify right side
    147,042,020.40x = 14,649,896,275,167,042
  5. Step 5: Solve for x
    x = 14,649,896,275,167,042/147,042,020.40
  6. Step 6: Final answer
    x = 99,630,678.60

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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.