Home / 499,236,019.40-748,555,430.70-257,371,315.40

Finding the Fourth Proportional to 499,236,019.40, 748,555,430.70 and 257,371,315.40

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Solution

The fourth proportional to 499,236,019.40, 748,555,430.70 and 257,371,315.40 is: 385,903,036.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,236,019.40 : 748,555,430.70 = 257,371,315.40 : x
  2. Step 2: Convert to fraction form
    499,236,019.40/748,555,430.70 = 257,371,315.40/x
  3. Step 3: Cross multiply
    499,236,019.40x = 748,555,430.70 × 257,371,315.40
  4. Step 4: Simplify right side
    499,236,019.40x = 192,656,695,849,072,544
  5. Step 5: Solve for x
    x = 192,656,695,849,072,544/499,236,019.40
  6. Step 6: Final answer
    x = 385,903,036.56

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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.