Home / 645,142,101.80-967,713,152.70-578,629,308.20

Finding the Fourth Proportional to 645,142,101.80, 967,713,152.70 and 578,629,308.20

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Solution

The fourth proportional to 645,142,101.80, 967,713,152.70 and 578,629,308.20 is: 867,943,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,142,101.80 : 967,713,152.70 = 578,629,308.20 : x
  2. Step 2: Convert to fraction form
    645,142,101.80/967,713,152.70 = 578,629,308.20/x
  3. Step 3: Cross multiply
    645,142,101.80x = 967,713,152.70 × 578,629,308.20
  4. Step 4: Simplify right side
    645,142,101.80x = 559,947,192,082,842,048
  5. Step 5: Solve for x
    x = 559,947,192,082,842,048/645,142,101.80
  6. Step 6: Final answer
    x = 867,943,962.30

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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.