Home / 421,398,282.48-630,838,050.71-254,897,905.47

Finding the Fourth Proportional to 421,398,282.48, 630,838,050.71 and 254,897,905.47

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Solution

The fourth proportional to 421,398,282.48, 630,838,050.71 and 254,897,905.47 is: 381,585,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,398,282.48 : 630,838,050.71 = 254,897,905.47 : x
  2. Step 2: Convert to fraction form
    421,398,282.48/630,838,050.71 = 254,897,905.47/x
  3. Step 3: Cross multiply
    421,398,282.48x = 630,838,050.71 × 254,897,905.47
  4. Step 4: Simplify right side
    421,398,282.48x = 160,799,297,817,059,264
  5. Step 5: Solve for x
    x = 160,799,297,817,059,264/421,398,282.48
  6. Step 6: Final answer
    x = 381,585,081.15

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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.