Home / 163,943,407.20-245,915,110.80-42,774,859.20

Finding the Fourth Proportional to 163,943,407.20, 245,915,110.80 and 42,774,859.20

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Solution

The fourth proportional to 163,943,407.20, 245,915,110.80 and 42,774,859.20 is: 64,162,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,943,407.20 : 245,915,110.80 = 42,774,859.20 : x
  2. Step 2: Convert to fraction form
    163,943,407.20/245,915,110.80 = 42,774,859.20/x
  3. Step 3: Cross multiply
    163,943,407.20x = 245,915,110.80 × 42,774,859.20
  4. Step 4: Simplify right side
    163,943,407.20x = 10,518,984,239,622,400
  5. Step 5: Solve for x
    x = 10,518,984,239,622,400/163,943,407.20
  6. Step 6: Final answer
    x = 64,162,288.80

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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.