Home / 119,886,977.70-179,830,466.55-81,144,928.80

Finding the Fourth Proportional to 119,886,977.70, 179,830,466.55 and 81,144,928.80

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Solution

The fourth proportional to 119,886,977.70, 179,830,466.55 and 81,144,928.80 is: 121,717,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,886,977.70 : 179,830,466.55 = 81,144,928.80 : x
  2. Step 2: Convert to fraction form
    119,886,977.70/179,830,466.55 = 81,144,928.80/x
  3. Step 3: Cross multiply
    119,886,977.70x = 179,830,466.55 × 81,144,928.80
  4. Step 4: Simplify right side
    119,886,977.70x = 14,592,330,404,270,532
  5. Step 5: Solve for x
    x = 14,592,330,404,270,532/119,886,977.70
  6. Step 6: Final answer
    x = 121,717,393.20

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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.