Home / 12,688,001.52-17,509,459.64-6,886,784.40

Finding the Fourth Proportional to 12,688,001.52, 17,509,459.64 and 6,886,784.40

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Solution

The fourth proportional to 12,688,001.52, 17,509,459.64 and 6,886,784.40 is: 9,503,771.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,001.52 : 17,509,459.64 = 6,886,784.40 : x
  2. Step 2: Convert to fraction form
    12,688,001.52/17,509,459.64 = 6,886,784.40/x
  3. Step 3: Cross multiply
    12,688,001.52x = 17,509,459.64 × 6,886,784.40
  4. Step 4: Simplify right side
    12,688,001.52x = 120,583,873,501,181.62
  5. Step 5: Solve for x
    x = 120,583,873,501,181.62/12,688,001.52
  6. Step 6: Final answer
    x = 9,503,771.99

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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.