Home / 5,315,419.20-7,973,128.80-5,283,926.40

Finding the Fourth Proportional to 5,315,419.20, 7,973,128.80 and 5,283,926.40

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Solution

The fourth proportional to 5,315,419.20, 7,973,128.80 and 5,283,926.40 is: 7,925,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,419.20 : 7,973,128.80 = 5,283,926.40 : x
  2. Step 2: Convert to fraction form
    5,315,419.20/7,973,128.80 = 5,283,926.40/x
  3. Step 3: Cross multiply
    5,315,419.20x = 7,973,128.80 × 5,283,926.40
  4. Step 4: Simplify right side
    5,315,419.20x = 42,129,425,756,920.32
  5. Step 5: Solve for x
    x = 42,129,425,756,920.32/5,315,419.20
  6. Step 6: Final answer
    x = 7,925,889.60

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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.