Home / 992,902,270.40-1,489,353,405.60-648,528,502.40

Finding the Fourth Proportional to 992,902,270.40, 1,489,353,405.60 and 648,528,502.40

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Solution

The fourth proportional to 992,902,270.40, 1,489,353,405.60 and 648,528,502.40 is: 972,792,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,902,270.40 : 1,489,353,405.60 = 648,528,502.40 : x
  2. Step 2: Convert to fraction form
    992,902,270.40/1,489,353,405.60 = 648,528,502.40/x
  3. Step 3: Cross multiply
    992,902,270.40x = 1,489,353,405.60 × 648,528,502.40
  4. Step 4: Simplify right side
    992,902,270.40x = 965,888,133,678,107,648
  5. Step 5: Solve for x
    x = 965,888,133,678,107,648/992,902,270.40
  6. Step 6: Final answer
    x = 972,792,753.60

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Double scale
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Similar ratio
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1.5x scale

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.