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Finding the Fourth Proportional to 12,461,952.60, 18,692,928.90 and 8,206,925.40

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Solution

The fourth proportional to 12,461,952.60, 18,692,928.90 and 8,206,925.40 is: 12,310,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461,952.60 : 18,692,928.90 = 8,206,925.40 : x
  2. Step 2: Convert to fraction form
    12,461,952.60/18,692,928.90 = 8,206,925.40/x
  3. Step 3: Cross multiply
    12,461,952.60x = 18,692,928.90 × 8,206,925.40
  4. Step 4: Simplify right side
    12,461,952.60x = 153,411,472,989,804.06
  5. Step 5: Solve for x
    x = 153,411,472,989,804.06/12,461,952.60
  6. Step 6: Final answer
    x = 12,310,388.10

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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.