Home / 621,461,253.88-857,939,345.40-454,009,509.19

Finding the Fourth Proportional to 621,461,253.88, 857,939,345.40 and 454,009,509.19

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Solution

The fourth proportional to 621,461,253.88, 857,939,345.40 and 454,009,509.19 is: 626,768,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,461,253.88 : 857,939,345.40 = 454,009,509.19 : x
  2. Step 2: Convert to fraction form
    621,461,253.88/857,939,345.40 = 454,009,509.19/x
  3. Step 3: Cross multiply
    621,461,253.88x = 857,939,345.40 × 454,009,509.19
  4. Step 4: Simplify right side
    621,461,253.88x = 389,512,621,119,843,840
  5. Step 5: Solve for x
    x = 389,512,621,119,843,840/621,461,253.88
  6. Step 6: Final answer
    x = 626,768,955.73

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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.