Home / 130,460,063.24-180,020,259.06-78,251,221.64

Finding the Fourth Proportional to 130,460,063.24, 180,020,259.06 and 78,251,221.64

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Solution

The fourth proportional to 130,460,063.24, 180,020,259.06 and 78,251,221.64 is: 107,977,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,460,063.24 : 180,020,259.06 = 78,251,221.64 : x
  2. Step 2: Convert to fraction form
    130,460,063.24/180,020,259.06 = 78,251,221.64/x
  3. Step 3: Cross multiply
    130,460,063.24x = 180,020,259.06 × 78,251,221.64
  4. Step 4: Simplify right side
    130,460,063.24x = 14,086,805,191,394,278
  5. Step 5: Solve for x
    x = 14,086,805,191,394,278/130,460,063.24
  6. Step 6: Final answer
    x = 107,977,911.72

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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.