Home / 513,822,940.83-709,076,355.08-278,873,608.59

Finding the Fourth Proportional to 513,822,940.83, 709,076,355.08 and 278,873,608.59

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Solution

The fourth proportional to 513,822,940.83, 709,076,355.08 and 278,873,608.59 is: 384,845,958.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,822,940.83 : 709,076,355.08 = 278,873,608.59 : x
  2. Step 2: Convert to fraction form
    513,822,940.83/709,076,355.08 = 278,873,608.59/x
  3. Step 3: Cross multiply
    513,822,940.83x = 709,076,355.08 × 278,873,608.59
  4. Step 4: Simplify right side
    513,822,940.83x = 197,742,681,905,609,408
  5. Step 5: Solve for x
    x = 197,742,681,905,609,408/513,822,940.83
  6. Step 6: Final answer
    x = 384,845,958.00

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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.