Home / 120,180,009.80-180,270,014.70-83,829,445.40

Finding the Fourth Proportional to 120,180,009.80, 180,270,014.70 and 83,829,445.40

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Solution

The fourth proportional to 120,180,009.80, 180,270,014.70 and 83,829,445.40 is: 125,744,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,180,009.80 : 180,270,014.70 = 83,829,445.40 : x
  2. Step 2: Convert to fraction form
    120,180,009.80/180,270,014.70 = 83,829,445.40/x
  3. Step 3: Cross multiply
    120,180,009.80x = 180,270,014.70 × 83,829,445.40
  4. Step 4: Simplify right side
    120,180,009.80x = 15,111,935,354,550,848
  5. Step 5: Solve for x
    x = 15,111,935,354,550,848/120,180,009.80
  6. Step 6: Final answer
    x = 125,744,168.10

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1.5x scale

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.