Home / 487,780,390.47-731,814,315.34-196,497,622.11

Finding the Fourth Proportional to 487,780,390.47, 731,814,315.34 and 196,497,622.11

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Solution

The fourth proportional to 487,780,390.47, 731,814,315.34 and 196,497,622.11 is: 294,804,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,780,390.47 : 731,814,315.34 = 196,497,622.11 : x
  2. Step 2: Convert to fraction form
    487,780,390.47/731,814,315.34 = 196,497,622.11/x
  3. Step 3: Cross multiply
    487,780,390.47x = 731,814,315.34 × 196,497,622.11
  4. Step 4: Simplify right side
    487,780,390.47x = 143,799,772,790,367,712
  5. Step 5: Solve for x
    x = 143,799,772,790,367,712/487,780,390.47
  6. Step 6: Final answer
    x = 294,804,333.26

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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.