Home / 8,478,812.81-11,700,539.93-4,947,284.86

Finding the Fourth Proportional to 8,478,812.81, 11,700,539.93 and 4,947,284.86

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Solution

The fourth proportional to 8,478,812.81, 11,700,539.93 and 4,947,284.86 is: 6,827,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,812.81 : 11,700,539.93 = 4,947,284.86 : x
  2. Step 2: Convert to fraction form
    8,478,812.81/11,700,539.93 = 4,947,284.86/x
  3. Step 3: Cross multiply
    8,478,812.81x = 11,700,539.93 × 4,947,284.86
  4. Step 4: Simplify right side
    8,478,812.81x = 57,885,904,032,631.32
  5. Step 5: Solve for x
    x = 57,885,904,032,631.32/8,478,812.81
  6. Step 6: Final answer
    x = 6,827,123.72

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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.