Home / 12,178,567.32-16,792,957.67-7,761,298.91

Finding the Fourth Proportional to 12,178,567.32, 16,792,957.67 and 7,761,298.91

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Solution

The fourth proportional to 12,178,567.32, 16,792,957.67 and 7,761,298.91 is: 10,702,011.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,567.32 : 16,792,957.67 = 7,761,298.91 : x
  2. Step 2: Convert to fraction form
    12,178,567.32/16,792,957.67 = 7,761,298.91/x
  3. Step 3: Cross multiply
    12,178,567.32x = 16,792,957.67 × 7,761,298.91
  4. Step 4: Simplify right side
    12,178,567.32x = 130,335,163,937,075.86
  5. Step 5: Solve for x
    x = 130,335,163,937,075.86/12,178,567.32
  6. Step 6: Final answer
    x = 10,702,011.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.