Home / 217,506,175.80-326,259,263.70-209,145,420.60

Finding the Fourth Proportional to 217,506,175.80, 326,259,263.70 and 209,145,420.60

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Solution

The fourth proportional to 217,506,175.80, 326,259,263.70 and 209,145,420.60 is: 313,718,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,506,175.80 : 326,259,263.70 = 209,145,420.60 : x
  2. Step 2: Convert to fraction form
    217,506,175.80/326,259,263.70 = 209,145,420.60/x
  3. Step 3: Cross multiply
    217,506,175.80x = 326,259,263.70 × 209,145,420.60
  4. Step 4: Simplify right side
    217,506,175.80x = 68,235,630,931,182,808
  5. Step 5: Solve for x
    x = 68,235,630,931,182,808/217,506,175.80
  6. Step 6: Final answer
    x = 313,718,130.90

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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.