Home / 319,181,543.40-478,400,306.40-146,675,794.80

Finding the Fourth Proportional to 319,181,543.40, 478,400,306.40 and 146,675,794.80

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Solution

The fourth proportional to 319,181,543.40, 478,400,306.40 and 146,675,794.80 is: 219,842,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,181,543.40 : 478,400,306.40 = 146,675,794.80 : x
  2. Step 2: Convert to fraction form
    319,181,543.40/478,400,306.40 = 146,675,794.80/x
  3. Step 3: Cross multiply
    319,181,543.40x = 478,400,306.40 × 146,675,794.80
  4. Step 4: Simplify right side
    319,181,543.40x = 70,169,745,173,783,528
  5. Step 5: Solve for x
    x = 70,169,745,173,783,528/319,181,543.40
  6. Step 6: Final answer
    x = 219,842,740.36

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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.