Home / 431,160,274.06-646,745,543.31-120,248,973.41

Finding the Fourth Proportional to 431,160,274.06, 646,745,543.31 and 120,248,973.41

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Solution

The fourth proportional to 431,160,274.06, 646,745,543.31 and 120,248,973.41 is: 180,374,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,160,274.06 : 646,745,543.31 = 120,248,973.41 : x
  2. Step 2: Convert to fraction form
    431,160,274.06/646,745,543.31 = 120,248,973.41/x
  3. Step 3: Cross multiply
    431,160,274.06x = 646,745,543.31 × 120,248,973.41
  4. Step 4: Simplify right side
    431,160,274.06x = 77,770,487,638,997,840
  5. Step 5: Solve for x
    x = 77,770,487,638,997,840/431,160,274.06
  6. Step 6: Final answer
    x = 180,374,891.47

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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.