Home / 10,528,146.10-15,778,459.88-7,620,030.84

Finding the Fourth Proportional to 10,528,146.10, 15,778,459.88 and 7,620,030.84

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Solution

The fourth proportional to 10,528,146.10, 15,778,459.88 and 7,620,030.84 is: 11,420,087.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528,146.10 : 15,778,459.88 = 7,620,030.84 : x
  2. Step 2: Convert to fraction form
    10,528,146.10/15,778,459.88 = 7,620,030.84/x
  3. Step 3: Cross multiply
    10,528,146.10x = 15,778,459.88 × 7,620,030.84
  4. Step 4: Simplify right side
    10,528,146.10x = 120,232,350,893,302.70
  5. Step 5: Solve for x
    x = 120,232,350,893,302.70/10,528,146.10
  6. Step 6: Final answer
    x = 11,420,087.62

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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.