Home / 718,953,642.70-1,078,430,464.05-310,009,793.20

Finding the Fourth Proportional to 718,953,642.70, 1,078,430,464.05 and 310,009,793.20

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Solution

The fourth proportional to 718,953,642.70, 1,078,430,464.05 and 310,009,793.20 is: 465,014,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,953,642.70 : 1,078,430,464.05 = 310,009,793.20 : x
  2. Step 2: Convert to fraction form
    718,953,642.70/1,078,430,464.05 = 310,009,793.20/x
  3. Step 3: Cross multiply
    718,953,642.70x = 1,078,430,464.05 × 310,009,793.20
  4. Step 4: Simplify right side
    718,953,642.70x = 334,324,005,140,720,512
  5. Step 5: Solve for x
    x = 334,324,005,140,720,512/718,953,642.70
  6. Step 6: Final answer
    x = 465,014,689.80

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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.