Home / 519,168,014.40-778,752,021.60-314,926,708.80

Finding the Fourth Proportional to 519,168,014.40, 778,752,021.60 and 314,926,708.80

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Solution

The fourth proportional to 519,168,014.40, 778,752,021.60 and 314,926,708.80 is: 472,390,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,168,014.40 : 778,752,021.60 = 314,926,708.80 : x
  2. Step 2: Convert to fraction form
    519,168,014.40/778,752,021.60 = 314,926,708.80/x
  3. Step 3: Cross multiply
    519,168,014.40x = 778,752,021.60 × 314,926,708.80
  4. Step 4: Simplify right side
    519,168,014.40x = 245,249,811,133,834,528
  5. Step 5: Solve for x
    x = 245,249,811,133,834,528/519,168,014.40
  6. Step 6: Final answer
    x = 472,390,063.20

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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.