Home / 307,614,765,509.40-461,054,816,244.90-128,540,406,149.40

Finding the Fourth Proportional to 307,614,765,509.40, 461,054,816,244.90 and 128,540,406,149.40

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Solution

The fourth proportional to 307,614,765,509.40, 461,054,816,244.90 and 128,540,406,149.40 is: 192,657,115,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,614,765,509.40 : 461,054,816,244.90 = 128,540,406,149.40 : x
  2. Step 2: Convert to fraction form
    307,614,765,509.40/461,054,816,244.90 = 128,540,406,149.40/x
  3. Step 3: Cross multiply
    307,614,765,509.40x = 461,054,816,244.90 × 128,540,406,149.40
  4. Step 4: Simplify right side
    307,614,765,509.40x = 59,264,173,337,256,432,500,736
  5. Step 5: Solve for x
    x = 59,264,173,337,256,432,500,736/307,614,765,509.40
  6. Step 6: Final answer
    x = 192,657,115,269.21

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1.5x scale

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.