Home / 40,931,445.70-61,397,168.55-19,408,085.20

Finding the Fourth Proportional to 40,931,445.70, 61,397,168.55 and 19,408,085.20

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Solution

The fourth proportional to 40,931,445.70, 61,397,168.55 and 19,408,085.20 is: 29,112,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,931,445.70 : 61,397,168.55 = 19,408,085.20 : x
  2. Step 2: Convert to fraction form
    40,931,445.70/61,397,168.55 = 19,408,085.20/x
  3. Step 3: Cross multiply
    40,931,445.70x = 61,397,168.55 × 19,408,085.20
  4. Step 4: Simplify right side
    40,931,445.70x = 1,191,601,478,257,160.25
  5. Step 5: Solve for x
    x = 1,191,601,478,257,160.25/40,931,445.70
  6. Step 6: Final answer
    x = 29,112,127.80

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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.