Home / 30,781,931.42-42,478,408.32-16,843,232.72

Finding the Fourth Proportional to 30,781,931.42, 42,478,408.32 and 16,843,232.72

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Solution

The fourth proportional to 30,781,931.42, 42,478,408.32 and 16,843,232.72 is: 23,243,301.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,781,931.42 : 42,478,408.32 = 16,843,232.72 : x
  2. Step 2: Convert to fraction form
    30,781,931.42/42,478,408.32 = 16,843,232.72/x
  3. Step 3: Cross multiply
    30,781,931.42x = 42,478,408.32 × 16,843,232.72
  4. Step 4: Simplify right side
    30,781,931.42x = 715,473,716,908,944.12
  5. Step 5: Solve for x
    x = 715,473,716,908,944.12/30,781,931.42
  6. Step 6: Final answer
    x = 23,243,301.64

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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.