Home / 153,914,031.64-212,404,800.32-87,833,214.28

Finding the Fourth Proportional to 153,914,031.64, 212,404,800.32 and 87,833,214.28

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Solution

The fourth proportional to 153,914,031.64, 212,404,800.32 and 87,833,214.28 is: 121,211,796.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,914,031.64 : 212,404,800.32 = 87,833,214.28 : x
  2. Step 2: Convert to fraction form
    153,914,031.64/212,404,800.32 = 87,833,214.28/x
  3. Step 3: Cross multiply
    153,914,031.64x = 212,404,800.32 × 87,833,214.28
  4. Step 4: Simplify right side
    153,914,031.64x = 18,656,196,340,607,172
  5. Step 5: Solve for x
    x = 18,656,196,340,607,172/153,914,031.64
  6. Step 6: Final answer
    x = 121,211,796.88

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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.