Home / 279,406,948.69-385,564,215.87-153,952,124.02

Finding the Fourth Proportional to 279,406,948.69, 385,564,215.87 and 153,952,124.02

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Solution

The fourth proportional to 279,406,948.69, 385,564,215.87 and 153,952,124.02 is: 212,444,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,406,948.69 : 385,564,215.87 = 153,952,124.02 : x
  2. Step 2: Convert to fraction form
    279,406,948.69/385,564,215.87 = 153,952,124.02/x
  3. Step 3: Cross multiply
    279,406,948.69x = 385,564,215.87 × 153,952,124.02
  4. Step 4: Simplify right side
    279,406,948.69x = 59,358,429,977,364,464
  5. Step 5: Solve for x
    x = 59,358,429,977,364,464/279,406,948.69
  6. Step 6: Final answer
    x = 212,444,358.51

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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.