Home / 398,956,386.09-597,915,502.83-162,330,144.87

Finding the Fourth Proportional to 398,956,386.09, 597,915,502.83 and 162,330,144.87

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Solution

The fourth proportional to 398,956,386.09, 597,915,502.83 and 162,330,144.87 is: 243,284,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,956,386.09 : 597,915,502.83 = 162,330,144.87 : x
  2. Step 2: Convert to fraction form
    398,956,386.09/597,915,502.83 = 162,330,144.87/x
  3. Step 3: Cross multiply
    398,956,386.09x = 597,915,502.83 × 162,330,144.87
  4. Step 4: Simplify right side
    398,956,386.09x = 97,059,710,194,412,800
  5. Step 5: Solve for x
    x = 97,059,710,194,412,800/398,956,386.09
  6. Step 6: Final answer
    x = 243,284,011.93

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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.