Home / 767,637,928.80-1,151,456,893.20-509,145,026.40

Finding the Fourth Proportional to 767,637,928.80, 1,151,456,893.20 and 509,145,026.40

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Solution

The fourth proportional to 767,637,928.80, 1,151,456,893.20 and 509,145,026.40 is: 763,717,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,637,928.80 : 1,151,456,893.20 = 509,145,026.40 : x
  2. Step 2: Convert to fraction form
    767,637,928.80/1,151,456,893.20 = 509,145,026.40/x
  3. Step 3: Cross multiply
    767,637,928.80x = 1,151,456,893.20 × 509,145,026.40
  4. Step 4: Simplify right side
    767,637,928.80x = 586,258,550,286,775,936
  5. Step 5: Solve for x
    x = 586,258,550,286,775,936/767,637,928.80
  6. Step 6: Final answer
    x = 763,717,539.60

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Double scale
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1.5x scale

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.