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Finding the Fourth Proportional to 442,785,339.60, 664,461,444.60 and 258,552,459.60

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Solution

The fourth proportional to 442,785,339.60, 664,461,444.60 and 258,552,459.60 is: 387,994,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,785,339.60 : 664,461,444.60 = 258,552,459.60 : x
  2. Step 2: Convert to fraction form
    442,785,339.60/664,461,444.60 = 258,552,459.60/x
  3. Step 3: Cross multiply
    442,785,339.60x = 664,461,444.60 × 258,552,459.60
  4. Step 4: Simplify right side
    442,785,339.60x = 171,798,140,810,699,136
  5. Step 5: Solve for x
    x = 171,798,140,810,699,136/442,785,339.60
  6. Step 6: Final answer
    x = 387,994,193.68

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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.