Home / 1,209,742,748.40-1,813,338,664.20-472,527,793.20

Finding the Fourth Proportional to 1,209,742,748.40, 1,813,338,664.20 and 472,527,793.20

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Solution

The fourth proportional to 1,209,742,748.40, 1,813,338,664.20 and 472,527,793.20 is: 708,293,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,742,748.40 : 1,813,338,664.20 = 472,527,793.20 : x
  2. Step 2: Convert to fraction form
    1,209,742,748.40/1,813,338,664.20 = 472,527,793.20/x
  3. Step 3: Cross multiply
    1,209,742,748.40x = 1,813,338,664.20 × 472,527,793.20
  4. Step 4: Simplify right side
    1,209,742,748.40x = 856,852,917,318,661,888
  5. Step 5: Solve for x
    x = 856,852,917,318,661,888/1,209,742,748.40
  6. Step 6: Final answer
    x = 708,293,493.35

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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.