Home / 78,406,699.61-108,201,334.95-43,598,642.72

Finding the Fourth Proportional to 78,406,699.61, 108,201,334.95 and 43,598,642.72

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Solution

The fourth proportional to 78,406,699.61, 108,201,334.95 and 43,598,642.72 is: 60,166,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,406,699.61 : 108,201,334.95 = 43,598,642.72 : x
  2. Step 2: Convert to fraction form
    78,406,699.61/108,201,334.95 = 43,598,642.72/x
  3. Step 3: Cross multiply
    78,406,699.61x = 108,201,334.95 × 43,598,642.72
  4. Step 4: Simplify right side
    78,406,699.61x = 4,717,431,343,771,093
  5. Step 5: Solve for x
    x = 4,717,431,343,771,093/78,406,699.61
  6. Step 6: Final answer
    x = 60,166,176.71

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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.