Home / 401,918,720.80-602,878,081.20-384,912,608.80

Finding the Fourth Proportional to 401,918,720.80, 602,878,081.20 and 384,912,608.80

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Solution

The fourth proportional to 401,918,720.80, 602,878,081.20 and 384,912,608.80 is: 577,368,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,918,720.80 : 602,878,081.20 = 384,912,608.80 : x
  2. Step 2: Convert to fraction form
    401,918,720.80/602,878,081.20 = 384,912,608.80/x
  3. Step 3: Cross multiply
    401,918,720.80x = 602,878,081.20 × 384,912,608.80
  4. Step 4: Simplify right side
    401,918,720.80x = 232,055,375,023,030,272
  5. Step 5: Solve for x
    x = 232,055,375,023,030,272/401,918,720.80
  6. Step 6: Final answer
    x = 577,368,913.20

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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.