Home / 1,019,263,579.77-1,528,897,143.15-319,809,393.65

Finding the Fourth Proportional to 1,019,263,579.77, 1,528,897,143.15 and 319,809,393.65

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Solution

The fourth proportional to 1,019,263,579.77, 1,528,897,143.15 and 319,809,393.65 is: 479,714,646.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,263,579.77 : 1,528,897,143.15 = 319,809,393.65 : x
  2. Step 2: Convert to fraction form
    1,019,263,579.77/1,528,897,143.15 = 319,809,393.65/x
  3. Step 3: Cross multiply
    1,019,263,579.77x = 1,528,897,143.15 × 319,809,393.65
  4. Step 4: Simplify right side
    1,019,263,579.77x = 488,955,668,307,840,960
  5. Step 5: Solve for x
    x = 488,955,668,307,840,960/1,019,263,579.77
  6. Step 6: Final answer
    x = 479,714,646.94

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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.