Home / 72,306,307.81-108,353,145.84-42,732,059.03

Finding the Fourth Proportional to 72,306,307.81, 108,353,145.84 and 42,732,059.03

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Solution

The fourth proportional to 72,306,307.81, 108,353,145.84 and 42,732,059.03 is: 64,035,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,306,307.81 : 108,353,145.84 = 42,732,059.03 : x
  2. Step 2: Convert to fraction form
    72,306,307.81/108,353,145.84 = 42,732,059.03/x
  3. Step 3: Cross multiply
    72,306,307.81x = 108,353,145.84 × 42,732,059.03
  4. Step 4: Simplify right side
    72,306,307.81x = 4,630,153,023,764,501
  5. Step 5: Solve for x
    x = 4,630,153,023,764,501/72,306,307.81
  6. Step 6: Final answer
    x = 64,035,257.28

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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.