Home / 913,113,648.12-1,369,917,592.44-651,129,178.68

Finding the Fourth Proportional to 913,113,648.12, 1,369,917,592.44 and 651,129,178.68

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Solution

The fourth proportional to 913,113,648.12, 1,369,917,592.44 and 651,129,178.68 is: 976,869,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,113,648.12 : 1,369,917,592.44 = 651,129,178.68 : x
  2. Step 2: Convert to fraction form
    913,113,648.12/1,369,917,592.44 = 651,129,178.68/x
  3. Step 3: Cross multiply
    913,113,648.12x = 1,369,917,592.44 × 651,129,178.68
  4. Step 4: Simplify right side
    913,113,648.12x = 891,993,316,824,740,096
  5. Step 5: Solve for x
    x = 891,993,316,824,740,096/913,113,648.12
  6. Step 6: Final answer
    x = 976,869,986.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.