Home / 830,207,678.13-1,245,626,036.15-498,446,370.57

Finding the Fourth Proportional to 830,207,678.13, 1,245,626,036.15 and 498,446,370.57

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Solution

The fourth proportional to 830,207,678.13, 1,245,626,036.15 and 498,446,370.57 is: 747,858,389.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,207,678.13 : 1,245,626,036.15 = 498,446,370.57 : x
  2. Step 2: Convert to fraction form
    830,207,678.13/1,245,626,036.15 = 498,446,370.57/x
  3. Step 3: Cross multiply
    830,207,678.13x = 1,245,626,036.15 × 498,446,370.57
  4. Step 4: Simplify right side
    830,207,678.13x = 620,877,776,801,481,088
  5. Step 5: Solve for x
    x = 620,877,776,801,481,088/830,207,678.13
  6. Step 6: Final answer
    x = 747,858,389.12

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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.