Home / 387,871,547.98-535,274,040.17-211,670,892.71

Finding the Fourth Proportional to 387,871,547.98, 535,274,040.17 and 211,670,892.71

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Solution

The fourth proportional to 387,871,547.98, 535,274,040.17 and 211,670,892.71 is: 292,112,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,871,547.98 : 535,274,040.17 = 211,670,892.71 : x
  2. Step 2: Convert to fraction form
    387,871,547.98/535,274,040.17 = 211,670,892.71/x
  3. Step 3: Cross multiply
    387,871,547.98x = 535,274,040.17 × 211,670,892.71
  4. Step 4: Simplify right side
    387,871,547.98x = 113,301,933,927,272,304
  5. Step 5: Solve for x
    x = 113,301,933,927,272,304/387,871,547.98
  6. Step 6: Final answer
    x = 292,112,000.78

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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.