Home / 136,271,837.40-204,407,756.10-78,876,209.40

Finding the Fourth Proportional to 136,271,837.40, 204,407,756.10 and 78,876,209.40

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Solution

The fourth proportional to 136,271,837.40, 204,407,756.10 and 78,876,209.40 is: 118,314,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,271,837.40 : 204,407,756.10 = 78,876,209.40 : x
  2. Step 2: Convert to fraction form
    136,271,837.40/204,407,756.10 = 78,876,209.40/x
  3. Step 3: Cross multiply
    136,271,837.40x = 204,407,756.10 × 78,876,209.40
  4. Step 4: Simplify right side
    136,271,837.40x = 16,122,908,973,127,728
  5. Step 5: Solve for x
    x = 16,122,908,973,127,728/136,271,837.40
  6. Step 6: Final answer
    x = 118,314,314.10

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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.