Home / 10,458,148.40-15,718,715.40-9,072,465.20

Finding the Fourth Proportional to 10,458,148.40, 15,718,715.40 and 9,072,465.20

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Solution

The fourth proportional to 10,458,148.40, 15,718,715.40 and 9,072,465.20 is: 13,636,017.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458,148.40 : 15,718,715.40 = 9,072,465.20 : x
  2. Step 2: Convert to fraction form
    10,458,148.40/15,718,715.40 = 9,072,465.20/x
  3. Step 3: Cross multiply
    10,458,148.40x = 15,718,715.40 × 9,072,465.20
  4. Step 4: Simplify right side
    10,458,148.40x = 142,607,498,455,204.06
  5. Step 5: Solve for x
    x = 142,607,498,455,204.06/10,458,148.40
  6. Step 6: Final answer
    x = 13,636,017.87

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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.