Home / 758,388,575.47-1,137,582,863.21-213,130,109.47

Finding the Fourth Proportional to 758,388,575.47, 1,137,582,863.21 and 213,130,109.47

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Solution

The fourth proportional to 758,388,575.47, 1,137,582,863.21 and 213,130,109.47 is: 319,695,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,388,575.47 : 1,137,582,863.21 = 213,130,109.47 : x
  2. Step 2: Convert to fraction form
    758,388,575.47/1,137,582,863.21 = 213,130,109.47/x
  3. Step 3: Cross multiply
    758,388,575.47x = 1,137,582,863.21 × 213,130,109.47
  4. Step 4: Simplify right side
    758,388,575.47x = 242,453,160,166,077,664
  5. Step 5: Solve for x
    x = 242,453,160,166,077,664/758,388,575.47
  6. Step 6: Final answer
    x = 319,695,164.21

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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.