Home / 7,240,172.79-9,990,355.53-4,142,204.10

Finding the Fourth Proportional to 7,240,172.79, 9,990,355.53 and 4,142,204.10

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Solution

The fourth proportional to 7,240,172.79, 9,990,355.53 and 4,142,204.10 is: 5,715,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240,172.79 : 9,990,355.53 = 4,142,204.10 : x
  2. Step 2: Convert to fraction form
    7,240,172.79/9,990,355.53 = 4,142,204.10/x
  3. Step 3: Cross multiply
    7,240,172.79x = 9,990,355.53 × 4,142,204.10
  4. Step 4: Simplify right side
    7,240,172.79x = 41,382,091,636,823.67
  5. Step 5: Solve for x
    x = 41,382,091,636,823.67/7,240,172.79
  6. Step 6: Final answer
    x = 5,715,622.10

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Double scale
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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.