Home / 401,990,513.20-602,985,769.80-159,653,417.20

Finding the Fourth Proportional to 401,990,513.20, 602,985,769.80 and 159,653,417.20

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Solution

The fourth proportional to 401,990,513.20, 602,985,769.80 and 159,653,417.20 is: 239,480,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,990,513.20 : 602,985,769.80 = 159,653,417.20 : x
  2. Step 2: Convert to fraction form
    401,990,513.20/602,985,769.80 = 159,653,417.20/x
  3. Step 3: Cross multiply
    401,990,513.20x = 602,985,769.80 × 159,653,417.20
  4. Step 4: Simplify right side
    401,990,513.20x = 96,268,738,671,542,544
  5. Step 5: Solve for x
    x = 96,268,738,671,542,544/401,990,513.20
  6. Step 6: Final answer
    x = 239,480,125.80

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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.