Home / 787,863,477,369.96-1,087,785,314,792.10-499,087,999,261.80

Finding the Fourth Proportional to 787,863,477,369.96, 1,087,785,314,792.10 and 499,087,999,261.80

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Solution

The fourth proportional to 787,863,477,369.96, 1,087,785,314,792.10 and 499,087,999,261.80 is: 689,079,532,152.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,863,477,369.96 : 1,087,785,314,792.10 = 499,087,999,261.80 : x
  2. Step 2: Convert to fraction form
    787,863,477,369.96/1,087,785,314,792.10 = 499,087,999,261.80/x
  3. Step 3: Cross multiply
    787,863,477,369.96x = 1,087,785,314,792.10 × 499,087,999,261.80
  4. Step 4: Simplify right side
    787,863,477,369.96x = 542,900,596,385,956,491,165,696
  5. Step 5: Solve for x
    x = 542,900,596,385,956,491,165,696/787,863,477,369.96
  6. Step 6: Final answer
    x = 689,079,532,152.28

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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.