Home / 55,007,681.50-75,912,962.49-30,561,395.50

Finding the Fourth Proportional to 55,007,681.50, 75,912,962.49 and 30,561,395.50

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Solution

The fourth proportional to 55,007,681.50, 75,912,962.49 and 30,561,395.50 is: 42,176,038.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,007,681.50 : 75,912,962.49 = 30,561,395.50 : x
  2. Step 2: Convert to fraction form
    55,007,681.50/75,912,962.49 = 30,561,395.50/x
  3. Step 3: Cross multiply
    55,007,681.50x = 75,912,962.49 × 30,561,395.50
  4. Step 4: Simplify right side
    55,007,681.50x = 2,320,006,070,233,554.50
  5. Step 5: Solve for x
    x = 2,320,006,070,233,554.50/55,007,681.50
  6. Step 6: Final answer
    x = 42,176,038.09

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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.