Home / 130,512,793.50-180,104,058.09-71,775,457.20

Finding the Fourth Proportional to 130,512,793.50, 180,104,058.09 and 71,775,457.20

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Solution

The fourth proportional to 130,512,793.50, 180,104,058.09 and 71,775,457.20 is: 99,048,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,512,793.50 : 180,104,058.09 = 71,775,457.20 : x
  2. Step 2: Convert to fraction form
    130,512,793.50/180,104,058.09 = 71,775,457.20/x
  3. Step 3: Cross multiply
    130,512,793.50x = 180,104,058.09 × 71,775,457.20
  4. Step 4: Simplify right side
    130,512,793.50x = 12,927,051,112,985,110
  5. Step 5: Solve for x
    x = 12,927,051,112,985,110/130,512,793.50
  6. Step 6: Final answer
    x = 99,048,152.80

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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.