Home / 145,154,415.40-217,731,623.10-123,235,426.60

Finding the Fourth Proportional to 145,154,415.40, 217,731,623.10 and 123,235,426.60

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Solution

The fourth proportional to 145,154,415.40, 217,731,623.10 and 123,235,426.60 is: 184,853,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,154,415.40 : 217,731,623.10 = 123,235,426.60 : x
  2. Step 2: Convert to fraction form
    145,154,415.40/217,731,623.10 = 123,235,426.60/x
  3. Step 3: Cross multiply
    145,154,415.40x = 217,731,623.10 × 123,235,426.60
  4. Step 4: Simplify right side
    145,154,415.40x = 26,832,249,457,038,912
  5. Step 5: Solve for x
    x = 26,832,249,457,038,912/145,154,415.40
  6. Step 6: Final answer
    x = 184,853,139.90

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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.