Home / 313,686,475.86-432,884,947.69-172,554,665.03

Finding the Fourth Proportional to 313,686,475.86, 432,884,947.69 and 172,554,665.03

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Solution

The fourth proportional to 313,686,475.86, 432,884,947.69 and 172,554,665.03 is: 238,124,123.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,686,475.86 : 432,884,947.69 = 172,554,665.03 : x
  2. Step 2: Convert to fraction form
    313,686,475.86/432,884,947.69 = 172,554,665.03/x
  3. Step 3: Cross multiply
    313,686,475.86x = 432,884,947.69 × 172,554,665.03
  4. Step 4: Simplify right side
    313,686,475.86x = 74,696,317,145,177,024
  5. Step 5: Solve for x
    x = 74,696,317,145,177,024/313,686,475.86
  6. Step 6: Final answer
    x = 238,124,123.59

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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.