Home / 10,390,847.55-15,559,699.28-7,680,498.45

Finding the Fourth Proportional to 10,390,847.55, 15,559,699.28 and 7,680,498.45

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Solution

The fourth proportional to 10,390,847.55, 15,559,699.28 and 7,680,498.45 is: 11,501,106.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390,847.55 : 15,559,699.28 = 7,680,498.45 : x
  2. Step 2: Convert to fraction form
    10,390,847.55/15,559,699.28 = 7,680,498.45/x
  3. Step 3: Cross multiply
    10,390,847.55x = 15,559,699.28 × 7,680,498.45
  4. Step 4: Simplify right side
    10,390,847.55x = 119,506,246,164,103.62
  5. Step 5: Solve for x
    x = 119,506,246,164,103.62/10,390,847.55
  6. Step 6: Final answer
    x = 11,501,106.68

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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.