Home / 288,632,642.68-432,902,877.18-84,112,878.52

Finding the Fourth Proportional to 288,632,642.68, 432,902,877.18 and 84,112,878.52

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Solution

The fourth proportional to 288,632,642.68, 432,902,877.18 and 84,112,878.52 is: 126,155,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,632,642.68 : 432,902,877.18 = 84,112,878.52 : x
  2. Step 2: Convert to fraction form
    288,632,642.68/432,902,877.18 = 84,112,878.52/x
  3. Step 3: Cross multiply
    288,632,642.68x = 432,902,877.18 × 84,112,878.52
  4. Step 4: Simplify right side
    288,632,642.68x = 36,412,707,119,199,816
  5. Step 5: Solve for x
    x = 36,412,707,119,199,816/288,632,642.68
  6. Step 6: Final answer
    x = 126,155,887.22

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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.