Home / 431,292,041.70-646,938,062.55-172,692,851.10

Finding the Fourth Proportional to 431,292,041.70, 646,938,062.55 and 172,692,851.10

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Solution

The fourth proportional to 431,292,041.70, 646,938,062.55 and 172,692,851.10 is: 259,039,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,292,041.70 : 646,938,062.55 = 172,692,851.10 : x
  2. Step 2: Convert to fraction form
    431,292,041.70/646,938,062.55 = 172,692,851.10/x
  3. Step 3: Cross multiply
    431,292,041.70x = 646,938,062.55 × 172,692,851.10
  4. Step 4: Simplify right side
    431,292,041.70x = 111,721,578,506,869,632
  5. Step 5: Solve for x
    x = 111,721,578,506,869,632/431,292,041.70
  6. Step 6: Final answer
    x = 259,039,276.65

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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.