Home / 621,119,266.80-931,678,900.20-477,792,034.80

Finding the Fourth Proportional to 621,119,266.80, 931,678,900.20 and 477,792,034.80

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Solution

The fourth proportional to 621,119,266.80, 931,678,900.20 and 477,792,034.80 is: 716,688,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,119,266.80 : 931,678,900.20 = 477,792,034.80 : x
  2. Step 2: Convert to fraction form
    621,119,266.80/931,678,900.20 = 477,792,034.80/x
  3. Step 3: Cross multiply
    621,119,266.80x = 931,678,900.20 × 477,792,034.80
  4. Step 4: Simplify right side
    621,119,266.80x = 445,148,757,506,784,192
  5. Step 5: Solve for x
    x = 445,148,757,506,784,192/621,119,266.80
  6. Step 6: Final answer
    x = 716,688,052.20

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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.