Home / 684,290,271.20-1,026,435,406.80-670,685,381.60

Finding the Fourth Proportional to 684,290,271.20, 1,026,435,406.80 and 670,685,381.60

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Solution

The fourth proportional to 684,290,271.20, 1,026,435,406.80 and 670,685,381.60 is: 1,006,028,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,290,271.20 : 1,026,435,406.80 = 670,685,381.60 : x
  2. Step 2: Convert to fraction form
    684,290,271.20/1,026,435,406.80 = 670,685,381.60/x
  3. Step 3: Cross multiply
    684,290,271.20x = 1,026,435,406.80 × 670,685,381.60
  4. Step 4: Simplify right side
    684,290,271.20x = 688,415,222,497,409,280
  5. Step 5: Solve for x
    x = 688,415,222,497,409,280/684,290,271.20
  6. Step 6: Final answer
    x = 1,006,028,072.40

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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.