Home / 74,909,317.40-112,363,976.10-21,056,629.40

Finding the Fourth Proportional to 74,909,317.40, 112,363,976.10 and 21,056,629.40

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Solution

The fourth proportional to 74,909,317.40, 112,363,976.10 and 21,056,629.40 is: 31,584,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,909,317.40 : 112,363,976.10 = 21,056,629.40 : x
  2. Step 2: Convert to fraction form
    74,909,317.40/112,363,976.10 = 21,056,629.40/x
  3. Step 3: Cross multiply
    74,909,317.40x = 112,363,976.10 × 21,056,629.40
  4. Step 4: Simplify right side
    74,909,317.40x = 2,366,006,602,648,157
  5. Step 5: Solve for x
    x = 2,366,006,602,648,157/74,909,317.40
  6. Step 6: Final answer
    x = 31,584,944.10

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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.