Home / 172,579,215.60-258,742,852.20-70,290,601.20

Finding the Fourth Proportional to 172,579,215.60, 258,742,852.20 and 70,290,601.20

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Solution

The fourth proportional to 172,579,215.60, 258,742,852.20 and 70,290,601.20 is: 105,384,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,579,215.60 : 258,742,852.20 = 70,290,601.20 : x
  2. Step 2: Convert to fraction form
    172,579,215.60/258,742,852.20 = 70,290,601.20/x
  3. Step 3: Cross multiply
    172,579,215.60x = 258,742,852.20 × 70,290,601.20
  4. Step 4: Simplify right side
    172,579,215.60x = 18,187,190,637,340,744
  5. Step 5: Solve for x
    x = 18,187,190,637,340,744/172,579,215.60
  6. Step 6: Final answer
    x = 105,384,594.40

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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.