Home / 143,147,679.81-215,044,749.32-84,893,566.95

Finding the Fourth Proportional to 143,147,679.81, 215,044,749.32 and 84,893,566.95

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Solution

The fourth proportional to 143,147,679.81, 215,044,749.32 and 84,893,566.95 is: 127,532,041.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,147,679.81 : 215,044,749.32 = 84,893,566.95 : x
  2. Step 2: Convert to fraction form
    143,147,679.81/215,044,749.32 = 84,893,566.95/x
  3. Step 3: Cross multiply
    143,147,679.81x = 215,044,749.32 × 84,893,566.95
  4. Step 4: Simplify right side
    143,147,679.81x = 18,255,915,824,539,492
  5. Step 5: Solve for x
    x = 18,255,915,824,539,492/143,147,679.81
  6. Step 6: Final answer
    x = 127,532,041.38

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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.