Home / 1,380,646,990.08-2,070,978,227.10-460,520,802.72

Finding the Fourth Proportional to 1,380,646,990.08, 2,070,978,227.10 and 460,520,802.72

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Solution

The fourth proportional to 1,380,646,990.08, 2,070,978,227.10 and 460,520,802.72 is: 690,783,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,646,990.08 : 2,070,978,227.10 = 460,520,802.72 : x
  2. Step 2: Convert to fraction form
    1,380,646,990.08/2,070,978,227.10 = 460,520,802.72/x
  3. Step 3: Cross multiply
    1,380,646,990.08x = 2,070,978,227.10 × 460,520,802.72
  4. Step 4: Simplify right side
    1,380,646,990.08x = 953,728,555,559,734,528
  5. Step 5: Solve for x
    x = 953,728,555,559,734,528/1,380,646,990.08
  6. Step 6: Final answer
    x = 690,783,786.45

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1.5x scale

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.