Home / 379,878,438.40-569,834,246.40-124,576,806.40

Finding the Fourth Proportional to 379,878,438.40, 569,834,246.40 and 124,576,806.40

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Solution

The fourth proportional to 379,878,438.40, 569,834,246.40 and 124,576,806.40 is: 186,870,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,878,438.40 : 569,834,246.40 = 124,576,806.40 : x
  2. Step 2: Convert to fraction form
    379,878,438.40/569,834,246.40 = 124,576,806.40/x
  3. Step 3: Cross multiply
    379,878,438.40x = 569,834,246.40 × 124,576,806.40
  4. Step 4: Simplify right side
    379,878,438.40x = 70,988,130,593,862,696
  5. Step 5: Solve for x
    x = 70,988,130,593,862,696/379,878,438.40
  6. Step 6: Final answer
    x = 186,870,649.71

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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.