Home / 56,989,945.17-78,646,191.61-30,884,463.01

Finding the Fourth Proportional to 56,989,945.17, 78,646,191.61 and 30,884,463.01

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Solution

The fourth proportional to 56,989,945.17, 78,646,191.61 and 30,884,463.01 is: 42,620,595.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,989,945.17 : 78,646,191.61 = 30,884,463.01 : x
  2. Step 2: Convert to fraction form
    56,989,945.17/78,646,191.61 = 30,884,463.01/x
  3. Step 3: Cross multiply
    56,989,945.17x = 78,646,191.61 × 30,884,463.01
  4. Step 4: Simplify right side
    56,989,945.17x = 2,428,945,395,382,591
  5. Step 5: Solve for x
    x = 2,428,945,395,382,591/56,989,945.17
  6. Step 6: Final answer
    x = 42,620,595.41

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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.