Home / 209,953,875.80-314,930,813.70-166,115,898.20

Finding the Fourth Proportional to 209,953,875.80, 314,930,813.70 and 166,115,898.20

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Solution

The fourth proportional to 209,953,875.80, 314,930,813.70 and 166,115,898.20 is: 249,173,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,875.80 : 314,930,813.70 = 166,115,898.20 : x
  2. Step 2: Convert to fraction form
    209,953,875.80/314,930,813.70 = 166,115,898.20/x
  3. Step 3: Cross multiply
    209,953,875.80x = 314,930,813.70 × 166,115,898.20
  4. Step 4: Simplify right side
    209,953,875.80x = 52,315,014,988,632,360
  5. Step 5: Solve for x
    x = 52,315,014,988,632,360/209,953,875.80
  6. Step 6: Final answer
    x = 249,173,847.30

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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.