Home / 133,272,005.20-199,908,007.80-42,404,779.60

Finding the Fourth Proportional to 133,272,005.20, 199,908,007.80 and 42,404,779.60

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Solution

The fourth proportional to 133,272,005.20, 199,908,007.80 and 42,404,779.60 is: 63,607,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,272,005.20 : 199,908,007.80 = 42,404,779.60 : x
  2. Step 2: Convert to fraction form
    133,272,005.20/199,908,007.80 = 42,404,779.60/x
  3. Step 3: Cross multiply
    133,272,005.20x = 199,908,007.80 × 42,404,779.60
  4. Step 4: Simplify right side
    133,272,005.20x = 8,477,055,011,034,082
  5. Step 5: Solve for x
    x = 8,477,055,011,034,082/133,272,005.20
  6. Step 6: Final answer
    x = 63,607,169.40

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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.