Home / 1,315,080,501.52-1,814,123,047.04-813,128,830.48

Finding the Fourth Proportional to 1,315,080,501.52, 1,814,123,047.04 and 813,128,830.48

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Solution

The fourth proportional to 1,315,080,501.52, 1,814,123,047.04 and 813,128,830.48 is: 1,121,692,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,080,501.52 : 1,814,123,047.04 = 813,128,830.48 : x
  2. Step 2: Convert to fraction form
    1,315,080,501.52/1,814,123,047.04 = 813,128,830.48/x
  3. Step 3: Cross multiply
    1,315,080,501.52x = 1,814,123,047.04 × 813,128,830.48
  4. Step 4: Simplify right side
    1,315,080,501.52x = 1,475,115,751,586,449,152
  5. Step 5: Solve for x
    x = 1,475,115,751,586,449,152/1,315,080,501.52
  6. Step 6: Final answer
    x = 1,121,692,360.19

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1.5x scale

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.