Home / 501,154,437-691,584,637.50-281,133,139.08

Finding the Fourth Proportional to 501,154,437, 691,584,637.50 and 281,133,139.08

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Solution

The fourth proportional to 501,154,437, 691,584,637.50 and 281,133,139.08 is: 387,958,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,154,437 : 691,584,637.50 = 281,133,139.08 : x
  2. Step 2: Convert to fraction form
    501,154,437/691,584,637.50 = 281,133,139.08/x
  3. Step 3: Cross multiply
    501,154,437x = 691,584,637.50 × 281,133,139.08
  4. Step 4: Simplify right side
    501,154,437x = 194,427,360,079,878,880
  5. Step 5: Solve for x
    x = 194,427,360,079,878,880/501,154,437
  6. Step 6: Final answer
    x = 387,958,971.78

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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.