Home / 66,430,200.90-99,645,301.35-54,313,346.10

Finding the Fourth Proportional to 66,430,200.90, 99,645,301.35 and 54,313,346.10

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Solution

The fourth proportional to 66,430,200.90, 99,645,301.35 and 54,313,346.10 is: 81,470,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,200.90 : 99,645,301.35 = 54,313,346.10 : x
  2. Step 2: Convert to fraction form
    66,430,200.90/99,645,301.35 = 54,313,346.10/x
  3. Step 3: Cross multiply
    66,430,200.90x = 99,645,301.35 × 54,313,346.10
  4. Step 4: Simplify right side
    66,430,200.90x = 5,412,069,739,461,347
  5. Step 5: Solve for x
    x = 5,412,069,739,461,347/66,430,200.90
  6. Step 6: Final answer
    x = 81,470,019.15

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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.