Home / 1,387,001,095.79-2,080,280,177.04-404,197,746.68

Finding the Fourth Proportional to 1,387,001,095.79, 2,080,280,177.04 and 404,197,746.68

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Solution

The fourth proportional to 1,387,001,095.79, 2,080,280,177.04 and 404,197,746.68 is: 606,232,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,001,095.79 : 2,080,280,177.04 = 404,197,746.68 : x
  2. Step 2: Convert to fraction form
    1,387,001,095.79/2,080,280,177.04 = 404,197,746.68/x
  3. Step 3: Cross multiply
    1,387,001,095.79x = 2,080,280,177.04 × 404,197,746.68
  4. Step 4: Simplify right side
    1,387,001,095.79x = 840,844,560,012,238,080
  5. Step 5: Solve for x
    x = 840,844,560,012,238,080/1,387,001,095.79
  6. Step 6: Final answer
    x = 606,232,080.54

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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.