Home / 707,424,331.20-1,060,128,727.20-521,742,782.40

Finding the Fourth Proportional to 707,424,331.20, 1,060,128,727.20 and 521,742,782.40

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Solution

The fourth proportional to 707,424,331.20, 1,060,128,727.20 and 521,742,782.40 is: 781,870,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,424,331.20 : 1,060,128,727.20 = 521,742,782.40 : x
  2. Step 2: Convert to fraction form
    707,424,331.20/1,060,128,727.20 = 521,742,782.40/x
  3. Step 3: Cross multiply
    707,424,331.20x = 1,060,128,727.20 × 521,742,782.40
  4. Step 4: Simplify right side
    707,424,331.20x = 553,114,511,831,498,560
  5. Step 5: Solve for x
    x = 553,114,511,831,498,560/707,424,331.20
  6. Step 6: Final answer
    x = 781,870,918.82

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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.