Home / 56,783,137.71-78,360,732.35-30,677,655.45

Finding the Fourth Proportional to 56,783,137.71, 78,360,732.35 and 30,677,655.45

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Solution

The fourth proportional to 56,783,137.71, 78,360,732.35 and 30,677,655.45 is: 42,335,165.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,783,137.71 : 78,360,732.35 = 30,677,655.45 : x
  2. Step 2: Convert to fraction form
    56,783,137.71/78,360,732.35 = 30,677,655.45/x
  3. Step 3: Cross multiply
    56,783,137.71x = 78,360,732.35 × 30,677,655.45
  4. Step 4: Simplify right side
    56,783,137.71x = 2,403,923,547,689,580.50
  5. Step 5: Solve for x
    x = 2,403,923,547,689,580.50/56,783,137.71
  6. Step 6: Final answer
    x = 42,335,165.77

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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.