Home / 438,140,479.44-656,242,006.64-299,637,855.12

Finding the Fourth Proportional to 438,140,479.44, 656,242,006.64 and 299,637,855.12

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Solution

The fourth proportional to 438,140,479.44, 656,242,006.64 and 299,637,855.12 is: 448,794,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,140,479.44 : 656,242,006.64 = 299,637,855.12 : x
  2. Step 2: Convert to fraction form
    438,140,479.44/656,242,006.64 = 299,637,855.12/x
  3. Step 3: Cross multiply
    438,140,479.44x = 656,242,006.64 × 299,637,855.12
  4. Step 4: Simplify right side
    438,140,479.44x = 196,634,947,309,254,400
  5. Step 5: Solve for x
    x = 196,634,947,309,254,400/438,140,479.44
  6. Step 6: Final answer
    x = 448,794,294.38

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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.