Home / 351,803,884.65-485,287,655.04-219,415,038.18

Finding the Fourth Proportional to 351,803,884.65, 485,287,655.04 and 219,415,038.18

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Solution

The fourth proportional to 351,803,884.65, 485,287,655.04 and 219,415,038.18 is: 302,666,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,803,884.65 : 485,287,655.04 = 219,415,038.18 : x
  2. Step 2: Convert to fraction form
    351,803,884.65/485,287,655.04 = 219,415,038.18/x
  3. Step 3: Cross multiply
    351,803,884.65x = 485,287,655.04 × 219,415,038.18
  4. Step 4: Simplify right side
    351,803,884.65x = 106,479,409,358,884,272
  5. Step 5: Solve for x
    x = 106,479,409,358,884,272/351,803,884.65
  6. Step 6: Final answer
    x = 302,666,951.69

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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.