Home / 992,739,614.40-1,489,109,421.60-265,728,326.40

Finding the Fourth Proportional to 992,739,614.40, 1,489,109,421.60 and 265,728,326.40

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Solution

The fourth proportional to 992,739,614.40, 1,489,109,421.60 and 265,728,326.40 is: 398,592,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,739,614.40 : 1,489,109,421.60 = 265,728,326.40 : x
  2. Step 2: Convert to fraction form
    992,739,614.40/1,489,109,421.60 = 265,728,326.40/x
  3. Step 3: Cross multiply
    992,739,614.40x = 1,489,109,421.60 × 265,728,326.40
  4. Step 4: Simplify right side
    992,739,614.40x = 395,698,554,428,240,000
  5. Step 5: Solve for x
    x = 395,698,554,428,240,000/992,739,614.40
  6. Step 6: Final answer
    x = 398,592,489.60

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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.