Home / 289,631,426.80-434,447,140.20-167,187,420.40

Finding the Fourth Proportional to 289,631,426.80, 434,447,140.20 and 167,187,420.40

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Solution

The fourth proportional to 289,631,426.80, 434,447,140.20 and 167,187,420.40 is: 250,781,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,631,426.80 : 434,447,140.20 = 167,187,420.40 : x
  2. Step 2: Convert to fraction form
    289,631,426.80/434,447,140.20 = 167,187,420.40/x
  3. Step 3: Cross multiply
    289,631,426.80x = 434,447,140.20 × 167,187,420.40
  4. Step 4: Simplify right side
    289,631,426.80x = 72,634,096,670,195,136
  5. Step 5: Solve for x
    x = 72,634,096,670,195,136/289,631,426.80
  6. Step 6: Final answer
    x = 250,781,130.60

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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.