Home / 186,821,780.42-257,814,047.14-100,892,312.18

Finding the Fourth Proportional to 186,821,780.42, 257,814,047.14 and 100,892,312.18

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Solution

The fourth proportional to 186,821,780.42, 257,814,047.14 and 100,892,312.18 is: 139,231,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,821,780.42 : 257,814,047.14 = 100,892,312.18 : x
  2. Step 2: Convert to fraction form
    186,821,780.42/257,814,047.14 = 100,892,312.18/x
  3. Step 3: Cross multiply
    186,821,780.42x = 257,814,047.14 × 100,892,312.18
  4. Step 4: Simplify right side
    186,821,780.42x = 26,011,455,328,830,420
  5. Step 5: Solve for x
    x = 26,011,455,328,830,420/186,821,780.42
  6. Step 6: Final answer
    x = 139,231,385.50

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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.