Home / 279,406,950.69-385,564,218.63-153,952,126.02

Finding the Fourth Proportional to 279,406,950.69, 385,564,218.63 and 153,952,126.02

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Solution

The fourth proportional to 279,406,950.69, 385,564,218.63 and 153,952,126.02 is: 212,444,361.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,406,950.69 : 385,564,218.63 = 153,952,126.02 : x
  2. Step 2: Convert to fraction form
    279,406,950.69/385,564,218.63 = 153,952,126.02/x
  3. Step 3: Cross multiply
    279,406,950.69x = 385,564,218.63 × 153,952,126.02
  4. Step 4: Simplify right side
    279,406,950.69x = 59,358,431,175,328,592
  5. Step 5: Solve for x
    x = 59,358,431,175,328,592/279,406,950.69
  6. Step 6: Final answer
    x = 212,444,361.28

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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.