Home / 7,185,086.13-9,913,938.70-4,128,709.89

Finding the Fourth Proportional to 7,185,086.13, 9,913,938.70 and 4,128,709.89

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Solution

The fourth proportional to 7,185,086.13, 9,913,938.70 and 4,128,709.89 is: 5,696,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185,086.13 : 9,913,938.70 = 4,128,709.89 : x
  2. Step 2: Convert to fraction form
    7,185,086.13/9,913,938.70 = 4,128,709.89/x
  3. Step 3: Cross multiply
    7,185,086.13x = 9,913,938.70 × 4,128,709.89
  4. Step 4: Simplify right side
    7,185,086.13x = 40,931,776,759,543.74
  5. Step 5: Solve for x
    x = 40,931,776,759,543.74/7,185,086.13
  6. Step 6: Final answer
    x = 5,696,769.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.