Home / 580,608,920.40-870,988,030.20-289,624,779.60

Finding the Fourth Proportional to 580,608,920.40, 870,988,030.20 and 289,624,779.60

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Solution

The fourth proportional to 580,608,920.40, 870,988,030.20 and 289,624,779.60 is: 434,474,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,608,920.40 : 870,988,030.20 = 289,624,779.60 : x
  2. Step 2: Convert to fraction form
    580,608,920.40/870,988,030.20 = 289,624,779.60/x
  3. Step 3: Cross multiply
    580,608,920.40x = 870,988,030.20 × 289,624,779.60
  4. Step 4: Simplify right side
    580,608,920.40x = 252,259,716,280,913,184
  5. Step 5: Solve for x
    x = 252,259,716,280,913,184/580,608,920.40
  6. Step 6: Final answer
    x = 434,474,406.81

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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.