Home / 120,963,459,419.40-181,445,189,129.10-79,169,238,568.20

Finding the Fourth Proportional to 120,963,459,419.40, 181,445,189,129.10 and 79,169,238,568.20

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Solution

The fourth proportional to 120,963,459,419.40, 181,445,189,129.10 and 79,169,238,568.20 is: 118,753,857,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,963,459,419.40 : 181,445,189,129.10 = 79,169,238,568.20 : x
  2. Step 2: Convert to fraction form
    120,963,459,419.40/181,445,189,129.10 = 79,169,238,568.20/x
  3. Step 3: Cross multiply
    120,963,459,419.40x = 181,445,189,129.10 × 79,169,238,568.20
  4. Step 4: Simplify right side
    120,963,459,419.40x = 14,364,877,465,213,886,005,248
  5. Step 5: Solve for x
    x = 14,364,877,465,213,886,005,248/120,963,459,419.40
  6. Step 6: Final answer
    x = 118,753,857,852.30

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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.