Home / 139,968,120.60-209,952,180.90-126,575,807.40

Finding the Fourth Proportional to 139,968,120.60, 209,952,180.90 and 126,575,807.40

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Solution

The fourth proportional to 139,968,120.60, 209,952,180.90 and 126,575,807.40 is: 189,863,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,120.60 : 209,952,180.90 = 126,575,807.40 : x
  2. Step 2: Convert to fraction form
    139,968,120.60/209,952,180.90 = 126,575,807.40/x
  3. Step 3: Cross multiply
    139,968,120.60x = 209,952,180.90 × 126,575,807.40
  4. Step 4: Simplify right side
    139,968,120.60x = 26,574,866,812,808,360
  5. Step 5: Solve for x
    x = 26,574,866,812,808,360/139,968,120.60
  6. Step 6: Final answer
    x = 189,863,711.10

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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.