Home / 107,007,999.20-160,511,998.80-79,758,130.40

Finding the Fourth Proportional to 107,007,999.20, 160,511,998.80 and 79,758,130.40

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Solution

The fourth proportional to 107,007,999.20, 160,511,998.80 and 79,758,130.40 is: 119,637,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,007,999.20 : 160,511,998.80 = 79,758,130.40 : x
  2. Step 2: Convert to fraction form
    107,007,999.20/160,511,998.80 = 79,758,130.40/x
  3. Step 3: Cross multiply
    107,007,999.20x = 160,511,998.80 × 79,758,130.40
  4. Step 4: Simplify right side
    107,007,999.20x = 12,802,136,931,055,046
  5. Step 5: Solve for x
    x = 12,802,136,931,055,046/107,007,999.20
  6. Step 6: Final answer
    x = 119,637,195.60

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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.