Home / 1,276,516,673.20-1,914,775,009.80-458,655,655.60

Finding the Fourth Proportional to 1,276,516,673.20, 1,914,775,009.80 and 458,655,655.60

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Solution

The fourth proportional to 1,276,516,673.20, 1,914,775,009.80 and 458,655,655.60 is: 687,983,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,516,673.20 : 1,914,775,009.80 = 458,655,655.60 : x
  2. Step 2: Convert to fraction form
    1,276,516,673.20/1,914,775,009.80 = 458,655,655.60/x
  3. Step 3: Cross multiply
    1,276,516,673.20x = 1,914,775,009.80 × 458,655,655.60
  4. Step 4: Simplify right side
    1,276,516,673.20x = 878,222,387,446,315,392
  5. Step 5: Solve for x
    x = 878,222,387,446,315,392/1,276,516,673.20
  6. Step 6: Final answer
    x = 687,983,483.40

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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.