Home / 384,930,007.80-577,389,762.90-126,153,670.20

Finding the Fourth Proportional to 384,930,007.80, 577,389,762.90 and 126,153,670.20

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Solution

The fourth proportional to 384,930,007.80, 577,389,762.90 and 126,153,670.20 is: 189,228,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,930,007.80 : 577,389,762.90 = 126,153,670.20 : x
  2. Step 2: Convert to fraction form
    384,930,007.80/577,389,762.90 = 126,153,670.20/x
  3. Step 3: Cross multiply
    384,930,007.80x = 577,389,762.90 × 126,153,670.20
  4. Step 4: Simplify right side
    384,930,007.80x = 72,839,837,725,742,800
  5. Step 5: Solve for x
    x = 72,839,837,725,742,800/384,930,007.80
  6. Step 6: Final answer
    x = 189,228,785.10

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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.