Home / 28,382,095.40-42,573,143.10-12,456,847.40

Finding the Fourth Proportional to 28,382,095.40, 42,573,143.10 and 12,456,847.40

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Solution

The fourth proportional to 28,382,095.40, 42,573,143.10 and 12,456,847.40 is: 18,685,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382,095.40 : 42,573,143.10 = 12,456,847.40 : x
  2. Step 2: Convert to fraction form
    28,382,095.40/42,573,143.10 = 12,456,847.40/x
  3. Step 3: Cross multiply
    28,382,095.40x = 42,573,143.10 × 12,456,847.40
  4. Step 4: Simplify right side
    28,382,095.40x = 530,327,146,935,063
  5. Step 5: Solve for x
    x = 530,327,146,935,063/28,382,095.40
  6. Step 6: Final answer
    x = 18,685,271.10

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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.