Home / 287,912,939.96-431,881,700.70-113,073,865.40

Finding the Fourth Proportional to 287,912,939.96, 431,881,700.70 and 113,073,865.40

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Solution

The fourth proportional to 287,912,939.96, 431,881,700.70 and 113,073,865.40 is: 169,615,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,912,939.96 : 431,881,700.70 = 113,073,865.40 : x
  2. Step 2: Convert to fraction form
    287,912,939.96/431,881,700.70 = 113,073,865.40/x
  3. Step 3: Cross multiply
    287,912,939.96x = 431,881,700.70 × 113,073,865.40
  4. Step 4: Simplify right side
    287,912,939.96x = 48,834,533,293,674,888
  5. Step 5: Solve for x
    x = 48,834,533,293,674,888/287,912,939.96
  6. Step 6: Final answer
    x = 169,615,625.13

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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.