Home / 7,178,111.92-9,905,444.94-4,277,438.20

Finding the Fourth Proportional to 7,178,111.92, 9,905,444.94 and 4,277,438.20

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Solution

The fourth proportional to 7,178,111.92, 9,905,444.94 and 4,277,438.20 is: 5,902,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,111.92 : 9,905,444.94 = 4,277,438.20 : x
  2. Step 2: Convert to fraction form
    7,178,111.92/9,905,444.94 = 4,277,438.20/x
  3. Step 3: Cross multiply
    7,178,111.92x = 9,905,444.94 × 4,277,438.20
  4. Step 4: Simplify right side
    7,178,111.92x = 42,369,928,574,352.71
  5. Step 5: Solve for x
    x = 42,369,928,574,352.71/7,178,111.92
  6. Step 6: Final answer
    x = 5,902,656.44

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1.5x scale

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.