Home / 699,159,662,315.08-964,830,065,817.20-390,515,525,589.20

Finding the Fourth Proportional to 699,159,662,315.08, 964,830,065,817.20 and 390,515,525,589.20

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Solution

The fourth proportional to 699,159,662,315.08, 964,830,065,817.20 and 390,515,525,589.20 is: 538,905,690,024.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,159,662,315.08 : 964,830,065,817.20 = 390,515,525,589.20 : x
  2. Step 2: Convert to fraction form
    699,159,662,315.08/964,830,065,817.20 = 390,515,525,589.20/x
  3. Step 3: Cross multiply
    699,159,662,315.08x = 964,830,065,817.20 × 390,515,525,589.20
  4. Step 4: Simplify right side
    699,159,662,315.08x = 376,781,120,256,866,288,402,432
  5. Step 5: Solve for x
    x = 376,781,120,256,866,288,402,432/699,159,662,315.08
  6. Step 6: Final answer
    x = 538,905,690,024.02

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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.