Home / 131,110,081.40-180,931,281.49-72,372,232.72

Finding the Fourth Proportional to 131,110,081.40, 180,931,281.49 and 72,372,232.72

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Solution

The fourth proportional to 131,110,081.40, 180,931,281.49 and 72,372,232.72 is: 99,873,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,110,081.40 : 180,931,281.49 = 72,372,232.72 : x
  2. Step 2: Convert to fraction form
    131,110,081.40/180,931,281.49 = 72,372,232.72/x
  3. Step 3: Cross multiply
    131,110,081.40x = 180,931,281.49 × 72,372,232.72
  4. Step 4: Simplify right side
    131,110,081.40x = 13,094,400,810,638,738
  5. Step 5: Solve for x
    x = 13,094,400,810,638,738/131,110,081.40
  6. Step 6: Final answer
    x = 99,873,332.93

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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.