Home / 478,552,078.80-717,828,118.20-409,677,325.20

Finding the Fourth Proportional to 478,552,078.80, 717,828,118.20 and 409,677,325.20

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Solution

The fourth proportional to 478,552,078.80, 717,828,118.20 and 409,677,325.20 is: 614,515,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,552,078.80 : 717,828,118.20 = 409,677,325.20 : x
  2. Step 2: Convert to fraction form
    478,552,078.80/717,828,118.20 = 409,677,325.20/x
  3. Step 3: Cross multiply
    478,552,078.80x = 717,828,118.20 × 409,677,325.20
  4. Step 4: Simplify right side
    478,552,078.80x = 294,077,903,417,525,440
  5. Step 5: Solve for x
    x = 294,077,903,417,525,440/478,552,078.80
  6. Step 6: Final answer
    x = 614,515,987.80

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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.