Home / 712,976,009.88-1,068,709,201.68-239,824,621.24

Finding the Fourth Proportional to 712,976,009.88, 1,068,709,201.68 and 239,824,621.24

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Solution

The fourth proportional to 712,976,009.88, 1,068,709,201.68 and 239,824,621.24 is: 359,483,034.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,976,009.88 : 1,068,709,201.68 = 239,824,621.24 : x
  2. Step 2: Convert to fraction form
    712,976,009.88/1,068,709,201.68 = 239,824,621.24/x
  3. Step 3: Cross multiply
    712,976,009.88x = 1,068,709,201.68 × 239,824,621.24
  4. Step 4: Simplify right side
    712,976,009.88x = 256,302,779,508,608,768
  5. Step 5: Solve for x
    x = 256,302,779,508,608,768/712,976,009.88
  6. Step 6: Final answer
    x = 359,483,034.43

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1.5x scale

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.