Home / 7,185,085.64-9,913,938.01-4,128,709.40

Finding the Fourth Proportional to 7,185,085.64, 9,913,938.01 and 4,128,709.40

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Solution

The fourth proportional to 7,185,085.64, 9,913,938.01 and 4,128,709.40 is: 5,696,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185,085.64 : 9,913,938.01 = 4,128,709.40 : x
  2. Step 2: Convert to fraction form
    7,185,085.64/9,913,938.01 = 4,128,709.40/x
  3. Step 3: Cross multiply
    7,185,085.64x = 9,913,938.01 × 4,128,709.40
  4. Step 4: Simplify right side
    7,185,085.64x = 40,931,768,982,691.06
  5. Step 5: Solve for x
    x = 40,931,768,982,691.06/7,185,085.64
  6. Step 6: Final answer
    x = 5,696,768.43

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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.