Home / 57,102,465.04-78,801,501.71-30,997,000.55

Finding the Fourth Proportional to 57,102,465.04, 78,801,501.71 and 30,997,000.55

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Solution

The fourth proportional to 57,102,465.04, 78,801,501.71 and 30,997,000.55 is: 42,775,915.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,102,465.04 : 78,801,501.71 = 30,997,000.55 : x
  2. Step 2: Convert to fraction form
    57,102,465.04/78,801,501.71 = 30,997,000.55/x
  3. Step 3: Cross multiply
    57,102,465.04x = 78,801,501.71 × 30,997,000.55
  4. Step 4: Simplify right side
    57,102,465.04x = 2,442,610,192,120,192.50
  5. Step 5: Solve for x
    x = 2,442,610,192,120,192.50/57,102,465.04
  6. Step 6: Final answer
    x = 42,775,915.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.