Home / 549,955,889.76-758,959,084.40-315,051,949.92

Finding the Fourth Proportional to 549,955,889.76, 758,959,084.40 and 315,051,949.92

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Solution

The fourth proportional to 549,955,889.76, 758,959,084.40 and 315,051,949.92 is: 434,783,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,955,889.76 : 758,959,084.40 = 315,051,949.92 : x
  2. Step 2: Convert to fraction form
    549,955,889.76/758,959,084.40 = 315,051,949.92/x
  3. Step 3: Cross multiply
    549,955,889.76x = 758,959,084.40 × 315,051,949.92
  4. Step 4: Simplify right side
    549,955,889.76x = 239,111,539,448,142,592
  5. Step 5: Solve for x
    x = 239,111,539,448,142,592/549,955,889.76
  6. Step 6: Final answer
    x = 434,783,123.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.