Home / 708,669,109.20-1,063,003,663.80-663,319,477.20

Finding the Fourth Proportional to 708,669,109.20, 1,063,003,663.80 and 663,319,477.20

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Solution

The fourth proportional to 708,669,109.20, 1,063,003,663.80 and 663,319,477.20 is: 994,979,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,669,109.20 : 1,063,003,663.80 = 663,319,477.20 : x
  2. Step 2: Convert to fraction form
    708,669,109.20/1,063,003,663.80 = 663,319,477.20/x
  3. Step 3: Cross multiply
    708,669,109.20x = 1,063,003,663.80 × 663,319,477.20
  4. Step 4: Simplify right side
    708,669,109.20x = 705,111,034,533,500,544
  5. Step 5: Solve for x
    x = 705,111,034,533,500,544/708,669,109.20
  6. Step 6: Final answer
    x = 994,979,215.80

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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.