Home / 72,576,006.40-108,864,009.60-70,896,390.40

Finding the Fourth Proportional to 72,576,006.40, 108,864,009.60 and 70,896,390.40

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Solution

The fourth proportional to 72,576,006.40, 108,864,009.60 and 70,896,390.40 is: 106,344,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,576,006.40 : 108,864,009.60 = 70,896,390.40 : x
  2. Step 2: Convert to fraction form
    72,576,006.40/108,864,009.60 = 70,896,390.40/x
  3. Step 3: Cross multiply
    72,576,006.40x = 108,864,009.60 × 70,896,390.40
  4. Step 4: Simplify right side
    72,576,006.40x = 7,718,065,325,110,948
  5. Step 5: Solve for x
    x = 7,718,065,325,110,948/72,576,006.40
  6. Step 6: Final answer
    x = 106,344,585.60

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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.