Home / 1,561,931,497.48-2,155,459,553.58-857,095,274.20

Finding the Fourth Proportional to 1,561,931,497.48, 2,155,459,553.58 and 857,095,274.20

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Solution

The fourth proportional to 1,561,931,497.48, 2,155,459,553.58 and 857,095,274.20 is: 1,182,788,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,931,497.48 : 2,155,459,553.58 = 857,095,274.20 : x
  2. Step 2: Convert to fraction form
    1,561,931,497.48/2,155,459,553.58 = 857,095,274.20/x
  3. Step 3: Cross multiply
    1,561,931,497.48x = 2,155,459,553.58 × 857,095,274.20
  4. Step 4: Simplify right side
    1,561,931,497.48x = 1,847,434,197,102,659,840
  5. Step 5: Solve for x
    x = 1,847,434,197,102,659,840/1,561,931,497.48
  6. Step 6: Final answer
    x = 1,182,788,233.72

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Double scale
Find fourth proportional to 1,561,931,498.48, 2,155,459,554.96 and 857,095,275.20
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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.