Home / 838,152,620.40-1,257,423,460.54-285,459,837.14

Finding the Fourth Proportional to 838,152,620.40, 1,257,423,460.54 and 285,459,837.14

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Solution

The fourth proportional to 838,152,620.40, 1,257,423,460.54 and 285,459,837.14 is: 428,256,009.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,152,620.40 : 1,257,423,460.54 = 285,459,837.14 : x
  2. Step 2: Convert to fraction form
    838,152,620.40/1,257,423,460.54 = 285,459,837.14/x
  3. Step 3: Cross multiply
    838,152,620.40x = 1,257,423,460.54 × 285,459,837.14
  4. Step 4: Simplify right side
    838,152,620.40x = 358,943,896,261,763,584
  5. Step 5: Solve for x
    x = 358,943,896,261,763,584/838,152,620.40
  6. Step 6: Final answer
    x = 428,256,009.14

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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.