Home / 129,301,197.90-178,439,432.49-70,567,632.51

Finding the Fourth Proportional to 129,301,197.90, 178,439,432.49 and 70,567,632.51

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Solution

The fourth proportional to 129,301,197.90, 178,439,432.49 and 70,567,632.51 is: 97,385,395.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,301,197.90 : 178,439,432.49 = 70,567,632.51 : x
  2. Step 2: Convert to fraction form
    129,301,197.90/178,439,432.49 = 70,567,632.51/x
  3. Step 3: Cross multiply
    129,301,197.90x = 178,439,432.49 × 70,567,632.51
  4. Step 4: Simplify right side
    129,301,197.90x = 12,592,048,297,247,276
  5. Step 5: Solve for x
    x = 12,592,048,297,247,276/129,301,197.90
  6. Step 6: Final answer
    x = 97,385,395.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.