Home / 727,938,673.60-1,091,908,010.40-210,385,998.40

Finding the Fourth Proportional to 727,938,673.60, 1,091,908,010.40 and 210,385,998.40

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Solution

The fourth proportional to 727,938,673.60, 1,091,908,010.40 and 210,385,998.40 is: 315,578,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,938,673.60 : 1,091,908,010.40 = 210,385,998.40 : x
  2. Step 2: Convert to fraction form
    727,938,673.60/1,091,908,010.40 = 210,385,998.40/x
  3. Step 3: Cross multiply
    727,938,673.60x = 1,091,908,010.40 × 210,385,998.40
  4. Step 4: Simplify right side
    727,938,673.60x = 229,722,156,928,961,600
  5. Step 5: Solve for x
    x = 229,722,156,928,961,600/727,938,673.60
  6. Step 6: Final answer
    x = 315,578,997.60

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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.