Home / 145,152,740.40-217,828,643.40-64,431,639.60

Finding the Fourth Proportional to 145,152,740.40, 217,828,643.40 and 64,431,639.60

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Solution

The fourth proportional to 145,152,740.40, 217,828,643.40 and 64,431,639.60 is: 96,691,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152,740.40 : 217,828,643.40 = 64,431,639.60 : x
  2. Step 2: Convert to fraction form
    145,152,740.40/217,828,643.40 = 64,431,639.60/x
  3. Step 3: Cross multiply
    145,152,740.40x = 217,828,643.40 × 64,431,639.60
  4. Step 4: Simplify right side
    145,152,740.40x = 14,035,056,646,105,720
  5. Step 5: Solve for x
    x = 14,035,056,646,105,720/145,152,740.40
  6. Step 6: Final answer
    x = 96,691,640.87

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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.