Home / 145,685,053.20-218,464,594.20-72,873,699.60

Finding the Fourth Proportional to 145,685,053.20, 218,464,594.20 and 72,873,699.60

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Solution

The fourth proportional to 145,685,053.20, 218,464,594.20 and 72,873,699.60 is: 109,279,043.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,685,053.20 : 218,464,594.20 = 72,873,699.60 : x
  2. Step 2: Convert to fraction form
    145,685,053.20/218,464,594.20 = 72,873,699.60/x
  3. Step 3: Cross multiply
    145,685,053.20x = 218,464,594.20 × 72,873,699.60
  4. Step 4: Simplify right side
    145,685,053.20x = 15,920,323,210,966,700
  5. Step 5: Solve for x
    x = 15,920,323,210,966,700/145,685,053.20
  6. Step 6: Final answer
    x = 109,279,043.12

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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.