Home / 119,118,510.80-178,677,766.20-42,528,021.20

Finding the Fourth Proportional to 119,118,510.80, 178,677,766.20 and 42,528,021.20

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Solution

The fourth proportional to 119,118,510.80, 178,677,766.20 and 42,528,021.20 is: 63,792,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,118,510.80 : 178,677,766.20 = 42,528,021.20 : x
  2. Step 2: Convert to fraction form
    119,118,510.80/178,677,766.20 = 42,528,021.20/x
  3. Step 3: Cross multiply
    119,118,510.80x = 178,677,766.20 × 42,528,021.20
  4. Step 4: Simplify right side
    119,118,510.80x = 7,598,811,828,922,243
  5. Step 5: Solve for x
    x = 7,598,811,828,922,243/119,118,510.80
  6. Step 6: Final answer
    x = 63,792,031.80

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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.