Home / 8,992,978.64-12,409,557-5,072,518.16

Finding the Fourth Proportional to 8,992,978.64, 12,409,557 and 5,072,518.16

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Solution

The fourth proportional to 8,992,978.64, 12,409,557 and 5,072,518.16 is: 6,999,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992,978.64 : 12,409,557 = 5,072,518.16 : x
  2. Step 2: Convert to fraction form
    8,992,978.64/12,409,557 = 5,072,518.16/x
  3. Step 3: Cross multiply
    8,992,978.64x = 12,409,557 × 5,072,518.16
  4. Step 4: Simplify right side
    8,992,978.64x = 62,947,703,240,055.12
  5. Step 5: Solve for x
    x = 62,947,703,240,055.12/8,992,978.64
  6. Step 6: Final answer
    x = 6,999,650.03

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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.