Home / 7,777,807.40-11,666,711.10-4,939,956.20

Finding the Fourth Proportional to 7,777,807.40, 11,666,711.10 and 4,939,956.20

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Solution

The fourth proportional to 7,777,807.40, 11,666,711.10 and 4,939,956.20 is: 7,409,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,807.40 : 11,666,711.10 = 4,939,956.20 : x
  2. Step 2: Convert to fraction form
    7,777,807.40/11,666,711.10 = 4,939,956.20/x
  3. Step 3: Cross multiply
    7,777,807.40x = 11,666,711.10 × 4,939,956.20
  4. Step 4: Simplify right side
    7,777,807.40x = 57,633,041,832,053.82
  5. Step 5: Solve for x
    x = 57,633,041,832,053.82/7,777,807.40
  6. Step 6: Final answer
    x = 7,409,934.30

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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.