Home / 139,789,541.40-209,684,312.10-98,974,872.60

Finding the Fourth Proportional to 139,789,541.40, 209,684,312.10 and 98,974,872.60

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Solution

The fourth proportional to 139,789,541.40, 209,684,312.10 and 98,974,872.60 is: 148,462,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,789,541.40 : 209,684,312.10 = 98,974,872.60 : x
  2. Step 2: Convert to fraction form
    139,789,541.40/209,684,312.10 = 98,974,872.60/x
  3. Step 3: Cross multiply
    139,789,541.40x = 209,684,312.10 × 98,974,872.60
  4. Step 4: Simplify right side
    139,789,541.40x = 20,753,478,076,316,136
  5. Step 5: Solve for x
    x = 20,753,478,076,316,136/139,789,541.40
  6. Step 6: Final answer
    x = 148,462,308.90

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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.