Home / 1,276,008,334.49-1,912,920,784.88-489,626,315.93

Finding the Fourth Proportional to 1,276,008,334.49, 1,912,920,784.88 and 489,626,315.93

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Solution

The fourth proportional to 1,276,008,334.49, 1,912,920,784.88 and 489,626,315.93 is: 734,020,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,008,334.49 : 1,912,920,784.88 = 489,626,315.93 : x
  2. Step 2: Convert to fraction form
    1,276,008,334.49/1,912,920,784.88 = 489,626,315.93/x
  3. Step 3: Cross multiply
    1,276,008,334.49x = 1,912,920,784.88 × 489,626,315.93
  4. Step 4: Simplify right side
    1,276,008,334.49x = 936,616,356,566,718,464
  5. Step 5: Solve for x
    x = 936,616,356,566,718,464/1,276,008,334.49
  6. Step 6: Final answer
    x = 734,020,563.39

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Double scale
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1.5x scale

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.