Home / 1,178,064,390.80-1,767,096,586.20-402,585,683.60

Finding the Fourth Proportional to 1,178,064,390.80, 1,767,096,586.20 and 402,585,683.60

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Solution

The fourth proportional to 1,178,064,390.80, 1,767,096,586.20 and 402,585,683.60 is: 603,878,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,064,390.80 : 1,767,096,586.20 = 402,585,683.60 : x
  2. Step 2: Convert to fraction form
    1,178,064,390.80/1,767,096,586.20 = 402,585,683.60/x
  3. Step 3: Cross multiply
    1,178,064,390.80x = 1,767,096,586.20 × 402,585,683.60
  4. Step 4: Simplify right side
    1,178,064,390.80x = 711,407,787,142,553,344
  5. Step 5: Solve for x
    x = 711,407,787,142,553,344/1,178,064,390.80
  6. Step 6: Final answer
    x = 603,878,525.40

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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.