Home / 511,830,571.95-768,176,547.48-479,545,531.20

Finding the Fourth Proportional to 511,830,571.95, 768,176,547.48 and 479,545,531.20

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Solution

The fourth proportional to 511,830,571.95, 768,176,547.48 and 479,545,531.20 is: 719,721,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,830,571.95 : 768,176,547.48 = 479,545,531.20 : x
  2. Step 2: Convert to fraction form
    511,830,571.95/768,176,547.48 = 479,545,531.20/x
  3. Step 3: Cross multiply
    511,830,571.95x = 768,176,547.48 × 479,545,531.20
  4. Step 4: Simplify right side
    511,830,571.95x = 368,375,630,516,678,592
  5. Step 5: Solve for x
    x = 368,375,630,516,678,592/511,830,571.95
  6. Step 6: Final answer
    x = 719,721,819.49

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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.