Home / 216,978,041.64-299,432,420.40-117,860,444.04

Finding the Fourth Proportional to 216,978,041.64, 299,432,420.40 and 117,860,444.04

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Solution

The fourth proportional to 216,978,041.64, 299,432,420.40 and 117,860,444.04 is: 162,648,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,978,041.64 : 299,432,420.40 = 117,860,444.04 : x
  2. Step 2: Convert to fraction form
    216,978,041.64/299,432,420.40 = 117,860,444.04/x
  3. Step 3: Cross multiply
    216,978,041.64x = 299,432,420.40 × 117,860,444.04
  4. Step 4: Simplify right side
    216,978,041.64x = 35,291,238,028,315,952
  5. Step 5: Solve for x
    x = 35,291,238,028,315,952/216,978,041.64
  6. Step 6: Final answer
    x = 162,648,891.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.