Home / 12,709,359.61-17,539,033.67-6,908,155

Finding the Fourth Proportional to 12,709,359.61, 17,539,033.67 and 6,908,155

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Solution

The fourth proportional to 12,709,359.61, 17,539,033.67 and 6,908,155 is: 9,533,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709,359.61 : 17,539,033.67 = 6,908,155 : x
  2. Step 2: Convert to fraction form
    12,709,359.61/17,539,033.67 = 6,908,155/x
  3. Step 3: Cross multiply
    12,709,359.61x = 17,539,033.67 × 6,908,155
  4. Step 4: Simplify right side
    12,709,359.61x = 121,162,363,142,578.86
  5. Step 5: Solve for x
    x = 121,162,363,142,578.86/12,709,359.61
  6. Step 6: Final answer
    x = 9,533,317.72

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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.