Home / 1,140,554,266.77-1,573,695,119.06-645,516,960.69

Finding the Fourth Proportional to 1,140,554,266.77, 1,573,695,119.06 and 645,516,960.69

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Solution

The fourth proportional to 1,140,554,266.77, 1,573,695,119.06 and 645,516,960.69 is: 890,660,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,554,266.77 : 1,573,695,119.06 = 645,516,960.69 : x
  2. Step 2: Convert to fraction form
    1,140,554,266.77/1,573,695,119.06 = 645,516,960.69/x
  3. Step 3: Cross multiply
    1,140,554,266.77x = 1,573,695,119.06 × 645,516,960.69
  4. Step 4: Simplify right side
    1,140,554,266.77x = 1,015,846,890,305,071,488
  5. Step 5: Solve for x
    x = 1,015,846,890,305,071,488/1,140,554,266.77
  6. Step 6: Final answer
    x = 890,660,725.14

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Half scale
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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.