Home / 991,734,256.28-1,487,141,694.47-369,782,493.75

Finding the Fourth Proportional to 991,734,256.28, 1,487,141,694.47 and 369,782,493.75

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Solution

The fourth proportional to 991,734,256.28, 1,487,141,694.47 and 369,782,493.75 is: 554,502,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,734,256.28 : 1,487,141,694.47 = 369,782,493.75 : x
  2. Step 2: Convert to fraction form
    991,734,256.28/1,487,141,694.47 = 369,782,493.75/x
  3. Step 3: Cross multiply
    991,734,256.28x = 1,487,141,694.47 × 369,782,493.75
  4. Step 4: Simplify right side
    991,734,256.28x = 549,918,964,341,641,664
  5. Step 5: Solve for x
    x = 549,918,964,341,641,664/991,734,256.28
  6. Step 6: Final answer
    x = 554,502,338.56

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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.