Home / 308,018,748-462,023,768.40-74,851,173.84

Finding the Fourth Proportional to 308,018,748, 462,023,768.40 and 74,851,173.84

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Solution

The fourth proportional to 308,018,748, 462,023,768.40 and 74,851,173.84 is: 112,275,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,018,748 : 462,023,768.40 = 74,851,173.84 : x
  2. Step 2: Convert to fraction form
    308,018,748/462,023,768.40 = 74,851,173.84/x
  3. Step 3: Cross multiply
    308,018,748x = 462,023,768.40 × 74,851,173.84
  4. Step 4: Simplify right side
    308,018,748x = 34,583,021,406,720,300
  5. Step 5: Solve for x
    x = 34,583,021,406,720,300/308,018,748
  6. Step 6: Final answer
    x = 112,275,702.80

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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.