Home / 515,014,675.67-710,725,313.18-280,070,441.57

Finding the Fourth Proportional to 515,014,675.67, 710,725,313.18 and 280,070,441.57

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Solution

The fourth proportional to 515,014,675.67, 710,725,313.18 and 280,070,441.57 is: 386,499,961.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,014,675.67 : 710,725,313.18 = 280,070,441.57 : x
  2. Step 2: Convert to fraction form
    515,014,675.67/710,725,313.18 = 280,070,441.57/x
  3. Step 3: Cross multiply
    515,014,675.67x = 710,725,313.18 × 280,070,441.57
  4. Step 4: Simplify right side
    515,014,675.67x = 199,053,152,295,898,784
  5. Step 5: Solve for x
    x = 199,053,152,295,898,784/515,014,675.67
  6. Step 6: Final answer
    x = 386,499,961.46

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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.