Home / 1,276,803,780.96-1,915,286,470.17-539,736,284.25

Finding the Fourth Proportional to 1,276,803,780.96, 1,915,286,470.17 and 539,736,284.25

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Solution

The fourth proportional to 1,276,803,780.96, 1,915,286,470.17 and 539,736,284.25 is: 809,638,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,803,780.96 : 1,915,286,470.17 = 539,736,284.25 : x
  2. Step 2: Convert to fraction form
    1,276,803,780.96/1,915,286,470.17 = 539,736,284.25/x
  3. Step 3: Cross multiply
    1,276,803,780.96x = 1,915,286,470.17 × 539,736,284.25
  4. Step 4: Simplify right side
    1,276,803,780.96x = 1,033,749,602,683,854,336
  5. Step 5: Solve for x
    x = 1,033,749,602,683,854,336/1,276,803,780.96
  6. Step 6: Final answer
    x = 809,638,581.98

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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.