Home / 56,893,125.42-78,512,513.05-30,787,643.22

Finding the Fourth Proportional to 56,893,125.42, 78,512,513.05 and 30,787,643.22

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Solution

The fourth proportional to 56,893,125.42, 78,512,513.05 and 30,787,643.22 is: 42,486,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893,125.42 : 78,512,513.05 = 30,787,643.22 : x
  2. Step 2: Convert to fraction form
    56,893,125.42/78,512,513.05 = 30,787,643.22/x
  3. Step 3: Cross multiply
    56,893,125.42x = 78,512,513.05 × 30,787,643.22
  4. Step 4: Simplify right side
    56,893,125.42x = 2,417,215,240,088,994
  5. Step 5: Solve for x
    x = 2,417,215,240,088,994/56,893,125.42
  6. Step 6: Final answer
    x = 42,486,947.63

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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.