Home / 1,990,657,025.80-2,985,985,538.70-610,460,571.40

Finding the Fourth Proportional to 1,990,657,025.80, 2,985,985,538.70 and 610,460,571.40

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Solution

The fourth proportional to 1,990,657,025.80, 2,985,985,538.70 and 610,460,571.40 is: 915,690,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,657,025.80 : 2,985,985,538.70 = 610,460,571.40 : x
  2. Step 2: Convert to fraction form
    1,990,657,025.80/2,985,985,538.70 = 610,460,571.40/x
  3. Step 3: Cross multiply
    1,990,657,025.80x = 2,985,985,538.70 × 610,460,571.40
  4. Step 4: Simplify right side
    1,990,657,025.80x = 1,822,826,438,146,938,624
  5. Step 5: Solve for x
    x = 1,822,826,438,146,938,624/1,990,657,025.80
  6. Step 6: Final answer
    x = 915,690,857.10

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Double scale
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Similar ratio
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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.