Home / 318,877,441.63-478,316,168.01-76,540,345.63

Finding the Fourth Proportional to 318,877,441.63, 478,316,168.01 and 76,540,345.63

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Solution

The fourth proportional to 318,877,441.63, 478,316,168.01 and 76,540,345.63 is: 114,810,519.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,877,441.63 : 478,316,168.01 = 76,540,345.63 : x
  2. Step 2: Convert to fraction form
    318,877,441.63/478,316,168.01 = 76,540,345.63/x
  3. Step 3: Cross multiply
    318,877,441.63x = 478,316,168.01 × 76,540,345.63
  4. Step 4: Simplify right side
    318,877,441.63x = 36,610,484,818,706,760
  5. Step 5: Solve for x
    x = 36,610,484,818,706,760/318,877,441.63
  6. Step 6: Final answer
    x = 114,810,519.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.