Home / 847,069,702.56-1,269,506,038.32-380,386,530.72

Finding the Fourth Proportional to 847,069,702.56, 1,269,506,038.32 and 380,386,530.72

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Solution

The fourth proportional to 847,069,702.56, 1,269,506,038.32 and 380,386,530.72 is: 570,086,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,069,702.56 : 1,269,506,038.32 = 380,386,530.72 : x
  2. Step 2: Convert to fraction form
    847,069,702.56/1,269,506,038.32 = 380,386,530.72/x
  3. Step 3: Cross multiply
    847,069,702.56x = 1,269,506,038.32 × 380,386,530.72
  4. Step 4: Simplify right side
    847,069,702.56x = 482,902,997,644,636,160
  5. Step 5: Solve for x
    x = 482,902,997,644,636,160/847,069,702.56
  6. Step 6: Final answer
    x = 570,086,494.87

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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.