Home / 1,072,315,447.08-1,479,915,141.18-649,162,259.48

Finding the Fourth Proportional to 1,072,315,447.08, 1,479,915,141.18 and 649,162,259.48

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Solution

The fourth proportional to 1,072,315,447.08, 1,479,915,141.18 and 649,162,259.48 is: 895,916,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,315,447.08 : 1,479,915,141.18 = 649,162,259.48 : x
  2. Step 2: Convert to fraction form
    1,072,315,447.08/1,479,915,141.18 = 649,162,259.48/x
  3. Step 3: Cross multiply
    1,072,315,447.08x = 1,479,915,141.18 × 649,162,259.48
  4. Step 4: Simplify right side
    1,072,315,447.08x = 960,705,056,887,072,128
  5. Step 5: Solve for x
    x = 960,705,056,887,072,128/1,072,315,447.08
  6. Step 6: Final answer
    x = 895,916,457.70

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Double scale
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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.