Home / 724,253,842.80-1,085,636,746.80-355,221,212.40

Finding the Fourth Proportional to 724,253,842.80, 1,085,636,746.80 and 355,221,212.40

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Solution

The fourth proportional to 724,253,842.80, 1,085,636,746.80 and 355,221,212.40 is: 532,466,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,253,842.80 : 1,085,636,746.80 = 355,221,212.40 : x
  2. Step 2: Convert to fraction form
    724,253,842.80/1,085,636,746.80 = 355,221,212.40/x
  3. Step 3: Cross multiply
    724,253,842.80x = 1,085,636,746.80 × 355,221,212.40
  4. Step 4: Simplify right side
    724,253,842.80x = 385,641,201,424,287,808
  5. Step 5: Solve for x
    x = 385,641,201,424,287,808/724,253,842.80
  6. Step 6: Final answer
    x = 532,466,904.05

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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.