Home / 472,392,430.30-708,588,645.45-165,715,543.90

Finding the Fourth Proportional to 472,392,430.30, 708,588,645.45 and 165,715,543.90

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Solution

The fourth proportional to 472,392,430.30, 708,588,645.45 and 165,715,543.90 is: 248,573,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,430.30 : 708,588,645.45 = 165,715,543.90 : x
  2. Step 2: Convert to fraction form
    472,392,430.30/708,588,645.45 = 165,715,543.90/x
  3. Step 3: Cross multiply
    472,392,430.30x = 708,588,645.45 × 165,715,543.90
  4. Step 4: Simplify right side
    472,392,430.30x = 117,424,152,782,111,024
  5. Step 5: Solve for x
    x = 117,424,152,782,111,024/472,392,430.30
  6. Step 6: Final answer
    x = 248,573,315.85

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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.