Home / 1,038,353,340.80-1,557,530,011.20-629,870,729.60

Finding the Fourth Proportional to 1,038,353,340.80, 1,557,530,011.20 and 629,870,729.60

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Solution

The fourth proportional to 1,038,353,340.80, 1,557,530,011.20 and 629,870,729.60 is: 944,806,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,353,340.80 : 1,557,530,011.20 = 629,870,729.60 : x
  2. Step 2: Convert to fraction form
    1,038,353,340.80/1,557,530,011.20 = 629,870,729.60/x
  3. Step 3: Cross multiply
    1,038,353,340.80x = 1,557,530,011.20 × 629,870,729.60
  4. Step 4: Simplify right side
    1,038,353,340.80x = 981,042,564,528,440,192
  5. Step 5: Solve for x
    x = 981,042,564,528,440,192/1,038,353,340.80
  6. Step 6: Final answer
    x = 944,806,094.40

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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.