Home / 549,955,938.23-758,959,151.31-315,051,998.39

Finding the Fourth Proportional to 549,955,938.23, 758,959,151.31 and 315,051,998.39

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Solution

The fourth proportional to 549,955,938.23, 758,959,151.31 and 315,051,998.39 is: 434,783,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,955,938.23 : 758,959,151.31 = 315,051,998.39 : x
  2. Step 2: Convert to fraction form
    549,955,938.23/758,959,151.31 = 315,051,998.39/x
  3. Step 3: Cross multiply
    549,955,938.23x = 758,959,151.31 × 315,051,998.39
  4. Step 4: Simplify right side
    549,955,938.23x = 239,111,597,312,799,072
  5. Step 5: Solve for x
    x = 239,111,597,312,799,072/549,955,938.23
  6. Step 6: Final answer
    x = 434,783,190.24

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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.