Home / 12,605,411.40-18,908,117.10-7,822,442.40

Finding the Fourth Proportional to 12,605,411.40, 18,908,117.10 and 7,822,442.40

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Solution

The fourth proportional to 12,605,411.40, 18,908,117.10 and 7,822,442.40 is: 11,733,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605,411.40 : 18,908,117.10 = 7,822,442.40 : x
  2. Step 2: Convert to fraction form
    12,605,411.40/18,908,117.10 = 7,822,442.40/x
  3. Step 3: Cross multiply
    12,605,411.40x = 18,908,117.10 × 7,822,442.40
  4. Step 4: Simplify right side
    12,605,411.40x = 147,907,656,907,205.06
  5. Step 5: Solve for x
    x = 147,907,656,907,205.06/12,605,411.40
  6. Step 6: Final answer
    x = 11,733,663.60

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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.