Home / 668,563,339.70-1,002,845,009.55-553,677,605.30

Finding the Fourth Proportional to 668,563,339.70, 1,002,845,009.55 and 553,677,605.30

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Solution

The fourth proportional to 668,563,339.70, 1,002,845,009.55 and 553,677,605.30 is: 830,516,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,563,339.70 : 1,002,845,009.55 = 553,677,605.30 : x
  2. Step 2: Convert to fraction form
    668,563,339.70/1,002,845,009.55 = 553,677,605.30/x
  3. Step 3: Cross multiply
    668,563,339.70x = 1,002,845,009.55 × 553,677,605.30
  4. Step 4: Simplify right side
    668,563,339.70x = 555,252,823,374,699,584
  5. Step 5: Solve for x
    x = 555,252,823,374,699,584/668,563,339.70
  6. Step 6: Final answer
    x = 830,516,407.95

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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.