Home / 1,260,423,999.40-1,892,582,418.30-687,115,071.40

Finding the Fourth Proportional to 1,260,423,999.40, 1,892,582,418.30 and 687,115,071.40

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Solution

The fourth proportional to 1,260,423,999.40, 1,892,582,418.30 and 687,115,071.40 is: 1,031,733,689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,423,999.40 : 1,892,582,418.30 = 687,115,071.40 : x
  2. Step 2: Convert to fraction form
    1,260,423,999.40/1,892,582,418.30 = 687,115,071.40/x
  3. Step 3: Cross multiply
    1,260,423,999.40x = 1,892,582,418.30 × 687,115,071.40
  4. Step 4: Simplify right side
    1,260,423,999.40x = 1,300,421,903,480,589,056
  5. Step 5: Solve for x
    x = 1,300,421,903,480,589,056/1,260,423,999.40
  6. Step 6: Final answer
    x = 1,031,733,689.69

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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.