Home / 143,430,147.40-197,927,756.90-84,711,821.80

Finding the Fourth Proportional to 143,430,147.40, 197,927,756.90 and 84,711,821.80

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Solution

The fourth proportional to 143,430,147.40, 197,927,756.90 and 84,711,821.80 is: 116,898,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,430,147.40 : 197,927,756.90 = 84,711,821.80 : x
  2. Step 2: Convert to fraction form
    143,430,147.40/197,927,756.90 = 84,711,821.80/x
  3. Step 3: Cross multiply
    143,430,147.40x = 197,927,756.90 × 84,711,821.80
  4. Step 4: Simplify right side
    143,430,147.40x = 16,766,820,871,556,926
  5. Step 5: Solve for x
    x = 16,766,820,871,556,926/143,430,147.40
  6. Step 6: Final answer
    x = 116,898,861.05

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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.