Home / 313,686,317.20-432,884,728.81-172,554,506.36

Finding the Fourth Proportional to 313,686,317.20, 432,884,728.81 and 172,554,506.36

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Solution

The fourth proportional to 313,686,317.20, 432,884,728.81 and 172,554,506.36 is: 238,123,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,686,317.20 : 432,884,728.81 = 172,554,506.36 : x
  2. Step 2: Convert to fraction form
    313,686,317.20/432,884,728.81 = 172,554,506.36/x
  3. Step 3: Cross multiply
    313,686,317.20x = 432,884,728.81 × 172,554,506.36
  4. Step 4: Simplify right side
    313,686,317.20x = 74,696,210,690,592,032
  5. Step 5: Solve for x
    x = 74,696,210,690,592,032/313,686,317.20
  6. Step 6: Final answer
    x = 238,123,904.66

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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.