Home / 469,291,465.51-647,327,642.50-278,417,347.26

Finding the Fourth Proportional to 469,291,465.51, 647,327,642.50 and 278,417,347.26

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Solution

The fourth proportional to 469,291,465.51, 647,327,642.50 and 278,417,347.26 is: 384,041,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,291,465.51 : 647,327,642.50 = 278,417,347.26 : x
  2. Step 2: Convert to fraction form
    469,291,465.51/647,327,642.50 = 278,417,347.26/x
  3. Step 3: Cross multiply
    469,291,465.51x = 647,327,642.50 × 278,417,347.26
  4. Step 4: Simplify right side
    469,291,465.51x = 180,227,245,035,840,128
  5. Step 5: Solve for x
    x = 180,227,245,035,840,128/469,291,465.51
  6. Step 6: Final answer
    x = 384,041,173.31

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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.