Home / 1,561,931,369.92-2,155,459,377.54-857,095,146.52

Finding the Fourth Proportional to 1,561,931,369.92, 2,155,459,377.54 and 857,095,146.52

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Solution

The fourth proportional to 1,561,931,369.92, 2,155,459,377.54 and 857,095,146.52 is: 1,182,788,057.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,931,369.92 : 2,155,459,377.54 = 857,095,146.52 : x
  2. Step 2: Convert to fraction form
    1,561,931,369.92/2,155,459,377.54 = 857,095,146.52/x
  3. Step 3: Cross multiply
    1,561,931,369.92x = 2,155,459,377.54 × 857,095,146.52
  4. Step 4: Simplify right side
    1,561,931,369.92x = 1,847,433,771,010,554,112
  5. Step 5: Solve for x
    x = 1,847,433,771,010,554,112/1,561,931,369.92
  6. Step 6: Final answer
    x = 1,182,788,057.52

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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.