Home / 676,619,139.40-1,014,928,709.10-515,376,003.40

Finding the Fourth Proportional to 676,619,139.40, 1,014,928,709.10 and 515,376,003.40

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Solution

The fourth proportional to 676,619,139.40, 1,014,928,709.10 and 515,376,003.40 is: 773,064,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,619,139.40 : 1,014,928,709.10 = 515,376,003.40 : x
  2. Step 2: Convert to fraction form
    676,619,139.40/1,014,928,709.10 = 515,376,003.40/x
  3. Step 3: Cross multiply
    676,619,139.40x = 1,014,928,709.10 × 515,376,003.40
  4. Step 4: Simplify right side
    676,619,139.40x = 523,069,901,831,879,168
  5. Step 5: Solve for x
    x = 523,069,901,831,879,168/676,619,139.40
  6. Step 6: Final answer
    x = 773,064,005.10

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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.