Home / 142,199,077.80-213,298,616.70-99,116,927.40

Finding the Fourth Proportional to 142,199,077.80, 213,298,616.70 and 99,116,927.40

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Solution

The fourth proportional to 142,199,077.80, 213,298,616.70 and 99,116,927.40 is: 148,675,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,199,077.80 : 213,298,616.70 = 99,116,927.40 : x
  2. Step 2: Convert to fraction form
    142,199,077.80/213,298,616.70 = 99,116,927.40/x
  3. Step 3: Cross multiply
    142,199,077.80x = 213,298,616.70 × 99,116,927.40
  4. Step 4: Simplify right side
    142,199,077.80x = 21,141,503,505,974,328
  5. Step 5: Solve for x
    x = 21,141,503,505,974,328/142,199,077.80
  6. Step 6: Final answer
    x = 148,675,391.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.