Home / 1,294,581,647.20-1,942,061,427.60-421,034,360.80

Finding the Fourth Proportional to 1,294,581,647.20, 1,942,061,427.60 and 421,034,360.80

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Solution

The fourth proportional to 1,294,581,647.20, 1,942,061,427.60 and 421,034,360.80 is: 631,612,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,581,647.20 : 1,942,061,427.60 = 421,034,360.80 : x
  2. Step 2: Convert to fraction form
    1,294,581,647.20/1,942,061,427.60 = 421,034,360.80/x
  3. Step 3: Cross multiply
    1,294,581,647.20x = 1,942,061,427.60 × 421,034,360.80
  4. Step 4: Simplify right side
    1,294,581,647.20x = 817,674,591,803,901,440
  5. Step 5: Solve for x
    x = 817,674,591,803,901,440/1,294,581,647.20
  6. Step 6: Final answer
    x = 631,612,995.27

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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.