Home / 7,728,970.16-10,665,199.32-4,290,837.68

Finding the Fourth Proportional to 7,728,970.16, 10,665,199.32 and 4,290,837.68

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Solution

The fourth proportional to 7,728,970.16, 10,665,199.32 and 4,290,837.68 is: 5,920,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,970.16 : 10,665,199.32 = 4,290,837.68 : x
  2. Step 2: Convert to fraction form
    7,728,970.16/10,665,199.32 = 4,290,837.68/x
  3. Step 3: Cross multiply
    7,728,970.16x = 10,665,199.32 × 4,290,837.68
  4. Step 4: Simplify right side
    7,728,970.16x = 45,762,639,106,966.38
  5. Step 5: Solve for x
    x = 45,762,639,106,966.38/7,728,970.16
  6. Step 6: Final answer
    x = 5,920,923.25

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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.