Home / 992,738,000.40-1,489,107,000.60-265,726,712.40

Finding the Fourth Proportional to 992,738,000.40, 1,489,107,000.60 and 265,726,712.40

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Solution

The fourth proportional to 992,738,000.40, 1,489,107,000.60 and 265,726,712.40 is: 398,590,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,738,000.40 : 1,489,107,000.60 = 265,726,712.40 : x
  2. Step 2: Convert to fraction form
    992,738,000.40/1,489,107,000.60 = 265,726,712.40/x
  3. Step 3: Cross multiply
    992,738,000.40x = 1,489,107,000.60 × 265,726,712.40
  4. Step 4: Simplify right side
    992,738,000.40x = 395,695,507,681,262,784
  5. Step 5: Solve for x
    x = 395,695,507,681,262,784/992,738,000.40
  6. Step 6: Final answer
    x = 398,590,068.60

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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.