Home / 61,638,705.15-92,455,815.32-18,506,787.51

Finding the Fourth Proportional to 61,638,705.15, 92,455,815.32 and 18,506,787.51

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Solution

The fourth proportional to 61,638,705.15, 92,455,815.32 and 18,506,787.51 is: 27,759,507.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,638,705.15 : 92,455,815.32 = 18,506,787.51 : x
  2. Step 2: Convert to fraction form
    61,638,705.15/92,455,815.32 = 18,506,787.51/x
  3. Step 3: Cross multiply
    61,638,705.15x = 92,455,815.32 × 18,506,787.51
  4. Step 4: Simplify right side
    61,638,705.15x = 1,711,060,128,191,042.75
  5. Step 5: Solve for x
    x = 1,711,060,128,191,042.75/61,638,705.15
  6. Step 6: Final answer
    x = 27,759,507.99

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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.