Home / 1,490,569,808.94-2,056,959,649.08-812,392,867.71

Finding the Fourth Proportional to 1,490,569,808.94, 2,056,959,649.08 and 812,392,867.71

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Solution

The fourth proportional to 1,490,569,808.94, 2,056,959,649.08 and 812,392,867.71 is: 1,121,087,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,569,808.94 : 2,056,959,649.08 = 812,392,867.71 : x
  2. Step 2: Convert to fraction form
    1,490,569,808.94/2,056,959,649.08 = 812,392,867.71/x
  3. Step 3: Cross multiply
    1,490,569,808.94x = 2,056,959,649.08 × 812,392,867.71
  4. Step 4: Simplify right side
    1,490,569,808.94x = 1,671,059,348,079,856,384
  5. Step 5: Solve for x
    x = 1,671,059,348,079,856,384/1,490,569,808.94
  6. Step 6: Final answer
    x = 1,121,087,612.31

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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.