Home / 20,807,411.40-31,211,117.10-7,345,600.20

Finding the Fourth Proportional to 20,807,411.40, 31,211,117.10 and 7,345,600.20

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Solution

The fourth proportional to 20,807,411.40, 31,211,117.10 and 7,345,600.20 is: 11,018,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,411.40 : 31,211,117.10 = 7,345,600.20 : x
  2. Step 2: Convert to fraction form
    20,807,411.40/31,211,117.10 = 7,345,600.20/x
  3. Step 3: Cross multiply
    20,807,411.40x = 31,211,117.10 × 7,345,600.20
  4. Step 4: Simplify right side
    20,807,411.40x = 229,264,388,011,983.44
  5. Step 5: Solve for x
    x = 229,264,388,011,983.44/20,807,411.40
  6. Step 6: Final answer
    x = 11,018,400.30

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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.