Home / 115,378,799.02-159,223,209.13-63,172,692.38

Finding the Fourth Proportional to 115,378,799.02, 159,223,209.13 and 63,172,692.38

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Solution

The fourth proportional to 115,378,799.02, 159,223,209.13 and 63,172,692.38 is: 87,178,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,378,799.02 : 159,223,209.13 = 63,172,692.38 : x
  2. Step 2: Convert to fraction form
    115,378,799.02/159,223,209.13 = 63,172,692.38/x
  3. Step 3: Cross multiply
    115,378,799.02x = 159,223,209.13 × 63,172,692.38
  4. Step 4: Simplify right side
    115,378,799.02x = 10,058,558,810,602,920
  5. Step 5: Solve for x
    x = 10,058,558,810,602,920/115,378,799.02
  6. Step 6: Final answer
    x = 87,178,570.90

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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.