Home / 278,771,640.84-384,714,260.88-153,333,538.32

Finding the Fourth Proportional to 278,771,640.84, 384,714,260.88 and 153,333,538.32

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Solution

The fourth proportional to 278,771,640.84, 384,714,260.88 and 153,333,538.32 is: 211,605,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,771,640.84 : 384,714,260.88 = 153,333,538.32 : x
  2. Step 2: Convert to fraction form
    278,771,640.84/384,714,260.88 = 153,333,538.32/x
  3. Step 3: Cross multiply
    278,771,640.84x = 384,714,260.88 × 153,333,538.32
  4. Step 4: Simplify right side
    278,771,640.84x = 58,989,598,862,893,952
  5. Step 5: Solve for x
    x = 58,989,598,862,893,952/278,771,640.84
  6. Step 6: Final answer
    x = 211,605,451.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.