Home / 132,854,963.40-199,282,445.10-81,570,688.20

Finding the Fourth Proportional to 132,854,963.40, 199,282,445.10 and 81,570,688.20

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Solution

The fourth proportional to 132,854,963.40, 199,282,445.10 and 81,570,688.20 is: 122,356,032.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,854,963.40 : 199,282,445.10 = 81,570,688.20 : x
  2. Step 2: Convert to fraction form
    132,854,963.40/199,282,445.10 = 81,570,688.20/x
  3. Step 3: Cross multiply
    132,854,963.40x = 199,282,445.10 × 81,570,688.20
  4. Step 4: Simplify right side
    132,854,963.40x = 16,255,606,192,985,718
  5. Step 5: Solve for x
    x = 16,255,606,192,985,718/132,854,963.40
  6. Step 6: Final answer
    x = 122,356,032.30

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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.