Home / 898,678,851.90-1,348,018,277.85-381,021,200.70

Finding the Fourth Proportional to 898,678,851.90, 1,348,018,277.85 and 381,021,200.70

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Solution

The fourth proportional to 898,678,851.90, 1,348,018,277.85 and 381,021,200.70 is: 571,531,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,678,851.90 : 1,348,018,277.85 = 381,021,200.70 : x
  2. Step 2: Convert to fraction form
    898,678,851.90/1,348,018,277.85 = 381,021,200.70/x
  3. Step 3: Cross multiply
    898,678,851.90x = 1,348,018,277.85 × 381,021,200.70
  4. Step 4: Simplify right side
    898,678,851.90x = 513,623,542,791,953,152
  5. Step 5: Solve for x
    x = 513,623,542,791,953,152/898,678,851.90
  6. Step 6: Final answer
    x = 571,531,801.05

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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.