Home / 872,979,464.45-1,309,456,865.13-406,379,913.01

Finding the Fourth Proportional to 872,979,464.45, 1,309,456,865.13 and 406,379,913.01

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Solution

The fourth proportional to 872,979,464.45, 1,309,456,865.13 and 406,379,913.01 is: 609,564,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,979,464.45 : 1,309,456,865.13 = 406,379,913.01 : x
  2. Step 2: Convert to fraction form
    872,979,464.45/1,309,456,865.13 = 406,379,913.01/x
  3. Step 3: Cross multiply
    872,979,464.45x = 1,309,456,865.13 × 406,379,913.01
  4. Step 4: Simplify right side
    872,979,464.45x = 532,136,966,938,603,072
  5. Step 5: Solve for x
    x = 532,136,966,938,603,072/872,979,464.45
  6. Step 6: Final answer
    x = 609,564,129.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.