Home / 209,843,611.40-314,765,417.10-73,511,280.20

Finding the Fourth Proportional to 209,843,611.40, 314,765,417.10 and 73,511,280.20

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Solution

The fourth proportional to 209,843,611.40, 314,765,417.10 and 73,511,280.20 is: 110,266,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,843,611.40 : 314,765,417.10 = 73,511,280.20 : x
  2. Step 2: Convert to fraction form
    209,843,611.40/314,765,417.10 = 73,511,280.20/x
  3. Step 3: Cross multiply
    209,843,611.40x = 314,765,417.10 × 73,511,280.20
  4. Step 4: Simplify right side
    209,843,611.40x = 23,138,808,773,707,976
  5. Step 5: Solve for x
    x = 23,138,808,773,707,976/209,843,611.40
  6. Step 6: Final answer
    x = 110,266,920.30

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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.