Home / 289,656,019.20-434,484,028.80-107,879,577.60

Finding the Fourth Proportional to 289,656,019.20, 434,484,028.80 and 107,879,577.60

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Solution

The fourth proportional to 289,656,019.20, 434,484,028.80 and 107,879,577.60 is: 161,819,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,656,019.20 : 434,484,028.80 = 107,879,577.60 : x
  2. Step 2: Convert to fraction form
    289,656,019.20/434,484,028.80 = 107,879,577.60/x
  3. Step 3: Cross multiply
    289,656,019.20x = 434,484,028.80 × 107,879,577.60
  4. Step 4: Simplify right side
    289,656,019.20x = 46,871,953,500,890,232
  5. Step 5: Solve for x
    x = 46,871,953,500,890,232/289,656,019.20
  6. Step 6: Final answer
    x = 161,819,366.40

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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.