Home / 124,403,422.21-171,710,868.95-72,209,273.20

Finding the Fourth Proportional to 124,403,422.21, 171,710,868.95 and 72,209,273.20

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Solution

The fourth proportional to 124,403,422.21, 171,710,868.95 and 72,209,273.20 is: 99,668,617.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,403,422.21 : 171,710,868.95 = 72,209,273.20 : x
  2. Step 2: Convert to fraction form
    124,403,422.21/171,710,868.95 = 72,209,273.20/x
  3. Step 3: Cross multiply
    124,403,422.21x = 171,710,868.95 × 72,209,273.20
  4. Step 4: Simplify right side
    124,403,422.21x = 12,399,117,047,058,900
  5. Step 5: Solve for x
    x = 12,399,117,047,058,900/124,403,422.21
  6. Step 6: Final answer
    x = 99,668,617.04

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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.