Home / 459,892,432.80-688,830,879.60-408,832,106.40

Finding the Fourth Proportional to 459,892,432.80, 688,830,879.60 and 408,832,106.40

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Solution

The fourth proportional to 459,892,432.80, 688,830,879.60 and 408,832,106.40 is: 612,352,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,892,432.80 : 688,830,879.60 = 408,832,106.40 : x
  2. Step 2: Convert to fraction form
    459,892,432.80/688,830,879.60 = 408,832,106.40/x
  3. Step 3: Cross multiply
    459,892,432.80x = 688,830,879.60 × 408,832,106.40
  4. Step 4: Simplify right side
    459,892,432.80x = 281,616,179,460,232,768
  5. Step 5: Solve for x
    x = 281,616,179,460,232,768/459,892,432.80
  6. Step 6: Final answer
    x = 612,352,279.31

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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.