Home / 1,284,837,062.40-1,772,918,390.70-720,191,628.72

Finding the Fourth Proportional to 1,284,837,062.40, 1,772,918,390.70 and 720,191,628.72

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Solution

The fourth proportional to 1,284,837,062.40, 1,772,918,390.70 and 720,191,628.72 is: 993,776,581.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,837,062.40 : 1,772,918,390.70 = 720,191,628.72 : x
  2. Step 2: Convert to fraction form
    1,284,837,062.40/1,772,918,390.70 = 720,191,628.72/x
  3. Step 3: Cross multiply
    1,284,837,062.40x = 1,772,918,390.70 × 720,191,628.72
  4. Step 4: Simplify right side
    1,284,837,062.40x = 1,276,840,983,385,874,432
  5. Step 5: Solve for x
    x = 1,276,840,983,385,874,432/1,284,837,062.40
  6. Step 6: Final answer
    x = 993,776,581.29

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Double scale
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1.5x scale

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.