Home / 307,959,678.42-424,841,899.10-272,713,403.22

Finding the Fourth Proportional to 307,959,678.42, 424,841,899.10 and 272,713,403.22

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Solution

The fourth proportional to 307,959,678.42, 424,841,899.10 and 272,713,403.22 is: 376,218,343.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,959,678.42 : 424,841,899.10 = 272,713,403.22 : x
  2. Step 2: Convert to fraction form
    307,959,678.42/424,841,899.10 = 272,713,403.22/x
  3. Step 3: Cross multiply
    307,959,678.42x = 424,841,899.10 × 272,713,403.22
  4. Step 4: Simplify right side
    307,959,678.42x = 115,860,080,132,645,312
  5. Step 5: Solve for x
    x = 115,860,080,132,645,312/307,959,678.42
  6. Step 6: Final answer
    x = 376,218,343.67

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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.