Home / 692,928,013.60-1,039,392,020.40-208,253,821.60

Finding the Fourth Proportional to 692,928,013.60, 1,039,392,020.40 and 208,253,821.60

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Solution

The fourth proportional to 692,928,013.60, 1,039,392,020.40 and 208,253,821.60 is: 312,380,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,928,013.60 : 1,039,392,020.40 = 208,253,821.60 : x
  2. Step 2: Convert to fraction form
    692,928,013.60/1,039,392,020.40 = 208,253,821.60/x
  3. Step 3: Cross multiply
    692,928,013.60x = 1,039,392,020.40 × 208,253,821.60
  4. Step 4: Simplify right side
    692,928,013.60x = 216,457,360,388,845,152
  5. Step 5: Solve for x
    x = 216,457,360,388,845,152/692,928,013.60
  6. Step 6: Final answer
    x = 312,380,732.40

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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.