Home / 318,877,437.69-478,316,162.10-76,540,341.69

Finding the Fourth Proportional to 318,877,437.69, 478,316,162.10 and 76,540,341.69

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Solution

The fourth proportional to 318,877,437.69, 478,316,162.10 and 76,540,341.69 is: 114,810,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,877,437.69 : 478,316,162.10 = 76,540,341.69 : x
  2. Step 2: Convert to fraction form
    318,877,437.69/478,316,162.10 = 76,540,341.69/x
  3. Step 3: Cross multiply
    318,877,437.69x = 478,316,162.10 × 76,540,341.69
  4. Step 4: Simplify right side
    318,877,437.69x = 36,610,482,483,270,456
  5. Step 5: Solve for x
    x = 36,610,482,483,270,456/318,877,437.69
  6. Step 6: Final answer
    x = 114,810,513.87

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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.