Home / 5,120,506.40-7,681,828.80-1,708,656.80

Finding the Fourth Proportional to 5,120,506.40, 7,681,828.80 and 1,708,656.80

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Solution

The fourth proportional to 5,120,506.40, 7,681,828.80 and 1,708,656.80 is: 2,563,341.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,506.40 : 7,681,828.80 = 1,708,656.80 : x
  2. Step 2: Convert to fraction form
    5,120,506.40/7,681,828.80 = 1,708,656.80/x
  3. Step 3: Cross multiply
    5,120,506.40x = 7,681,828.80 × 1,708,656.80
  4. Step 4: Simplify right side
    5,120,506.40x = 13,125,609,015,555.84
  5. Step 5: Solve for x
    x = 13,125,609,015,555.84/5,120,506.40
  6. Step 6: Final answer
    x = 2,563,341.98

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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.