Home / 1,693,066,147.19-2,539,926,270.85-643,722,762.20

Finding the Fourth Proportional to 1,693,066,147.19, 2,539,926,270.85 and 643,722,762.20

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Solution

The fourth proportional to 1,693,066,147.19, 2,539,926,270.85 and 643,722,762.20 is: 965,708,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693,066,147.19 : 2,539,926,270.85 = 643,722,762.20 : x
  2. Step 2: Convert to fraction form
    1,693,066,147.19/2,539,926,270.85 = 643,722,762.20/x
  3. Step 3: Cross multiply
    1,693,066,147.19x = 2,539,926,270.85 × 643,722,762.20
  4. Step 4: Simplify right side
    1,693,066,147.19x = 1,635,008,354,841,598,464
  5. Step 5: Solve for x
    x = 1,635,008,354,841,598,464/1,693,066,147.19
  6. Step 6: Final answer
    x = 965,708,491.40

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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.