Home / 186,821,784.74-257,814,053.10-100,892,316.51

Finding the Fourth Proportional to 186,821,784.74, 257,814,053.10 and 100,892,316.51

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Solution

The fourth proportional to 186,821,784.74, 257,814,053.10 and 100,892,316.51 is: 139,231,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,821,784.74 : 257,814,053.10 = 100,892,316.51 : x
  2. Step 2: Convert to fraction form
    186,821,784.74/257,814,053.10 = 100,892,316.51/x
  3. Step 3: Cross multiply
    186,821,784.74x = 257,814,053.10 × 100,892,316.51
  4. Step 4: Simplify right side
    186,821,784.74x = 26,011,457,046,091,148
  5. Step 5: Solve for x
    x = 26,011,457,046,091,148/186,821,784.74
  6. Step 6: Final answer
    x = 139,231,391.47

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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.