Home / 209,425,155.48-288,997,389.85-120,053,026.98

Finding the Fourth Proportional to 209,425,155.48, 288,997,389.85 and 120,053,026.98

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Solution

The fourth proportional to 209,425,155.48, 288,997,389.85 and 120,053,026.98 is: 165,667,831.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,425,155.48 : 288,997,389.85 = 120,053,026.98 : x
  2. Step 2: Convert to fraction form
    209,425,155.48/288,997,389.85 = 120,053,026.98/x
  3. Step 3: Cross multiply
    209,425,155.48x = 288,997,389.85 × 120,053,026.98
  4. Step 4: Simplify right side
    209,425,155.48x = 34,695,011,440,811,632
  5. Step 5: Solve for x
    x = 34,695,011,440,811,632/209,425,155.48
  6. Step 6: Final answer
    x = 165,667,831.84

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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.