Home / 818,041,370.80-1,128,924,946.56-483,800,411.20

Finding the Fourth Proportional to 818,041,370.80, 1,128,924,946.56 and 483,800,411.20

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Solution

The fourth proportional to 818,041,370.80, 1,128,924,946.56 and 483,800,411.20 is: 667,661,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,041,370.80 : 1,128,924,946.56 = 483,800,411.20 : x
  2. Step 2: Convert to fraction form
    818,041,370.80/1,128,924,946.56 = 483,800,411.20/x
  3. Step 3: Cross multiply
    818,041,370.80x = 1,128,924,946.56 × 483,800,411.20
  4. Step 4: Simplify right side
    818,041,370.80x = 546,174,353,359,665,984
  5. Step 5: Solve for x
    x = 546,174,353,359,665,984/818,041,370.80
  6. Step 6: Final answer
    x = 667,661,041.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.