Home / 252,424,985.72-378,651,256.67-79,888,925.30

Finding the Fourth Proportional to 252,424,985.72, 378,651,256.67 and 79,888,925.30

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Solution

The fourth proportional to 252,424,985.72, 378,651,256.67 and 79,888,925.30 is: 119,837,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,424,985.72 : 378,651,256.67 = 79,888,925.30 : x
  2. Step 2: Convert to fraction form
    252,424,985.72/378,651,256.67 = 79,888,925.30/x
  3. Step 3: Cross multiply
    252,424,985.72x = 378,651,256.67 × 79,888,925.30
  4. Step 4: Simplify right side
    252,424,985.72x = 30,250,041,957,167,224
  5. Step 5: Solve for x
    x = 30,250,041,957,167,224/252,424,985.72
  6. Step 6: Final answer
    x = 119,837,748.52

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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.