Home / 290,012,881.50-435,007,524.51-71,657,725.05

Finding the Fourth Proportional to 290,012,881.50, 435,007,524.51 and 71,657,725.05

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Solution

The fourth proportional to 290,012,881.50, 435,007,524.51 and 71,657,725.05 is: 107,483,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,012,881.50 : 435,007,524.51 = 71,657,725.05 : x
  2. Step 2: Convert to fraction form
    290,012,881.50/435,007,524.51 = 71,657,725.05/x
  3. Step 3: Cross multiply
    290,012,881.50x = 435,007,524.51 × 71,657,725.05
  4. Step 4: Simplify right side
    290,012,881.50x = 31,171,649,586,018,712
  5. Step 5: Solve for x
    x = 31,171,649,586,018,712/290,012,881.50
  6. Step 6: Final answer
    x = 107,483,672.53

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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.