Home / 838,152,610.67-1,257,423,445.95-285,459,827.39

Finding the Fourth Proportional to 838,152,610.67, 1,257,423,445.95 and 285,459,827.39

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Solution

The fourth proportional to 838,152,610.67, 1,257,423,445.95 and 285,459,827.39 is: 428,255,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,152,610.67 : 1,257,423,445.95 = 285,459,827.39 : x
  2. Step 2: Convert to fraction form
    838,152,610.67/1,257,423,445.95 = 285,459,827.39/x
  3. Step 3: Cross multiply
    838,152,610.67x = 1,257,423,445.95 × 285,459,827.39
  4. Step 4: Simplify right side
    838,152,610.67x = 358,943,879,836,824,384
  5. Step 5: Solve for x
    x = 358,943,879,836,824,384/838,152,610.67
  6. Step 6: Final answer
    x = 428,255,994.51

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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.