Home / 289,631,416.80-434,447,125.20-167,187,410.40

Finding the Fourth Proportional to 289,631,416.80, 434,447,125.20 and 167,187,410.40

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Solution

The fourth proportional to 289,631,416.80, 434,447,125.20 and 167,187,410.40 is: 250,781,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,631,416.80 : 434,447,125.20 = 167,187,410.40 : x
  2. Step 2: Convert to fraction form
    289,631,416.80/434,447,125.20 = 167,187,410.40/x
  3. Step 3: Cross multiply
    289,631,416.80x = 434,447,125.20 × 167,187,410.40
  4. Step 4: Simplify right side
    289,631,416.80x = 72,634,089,817,912,576
  5. Step 5: Solve for x
    x = 72,634,089,817,912,576/289,631,416.80
  6. Step 6: Final answer
    x = 250,781,115.60

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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.