Home / 287,035,392,006.20-430,553,088,009.30-153,142,871,007.80

Finding the Fourth Proportional to 287,035,392,006.20, 430,553,088,009.30 and 153,142,871,007.80

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Solution

The fourth proportional to 287,035,392,006.20, 430,553,088,009.30 and 153,142,871,007.80 is: 229,714,306,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,035,392,006.20 : 430,553,088,009.30 = 153,142,871,007.80 : x
  2. Step 2: Convert to fraction form
    287,035,392,006.20/430,553,088,009.30 = 153,142,871,007.80/x
  3. Step 3: Cross multiply
    287,035,392,006.20x = 430,553,088,009.30 × 153,142,871,007.80
  4. Step 4: Simplify right side
    287,035,392,006.20x = 65,936,136,019,018,187,276,288
  5. Step 5: Solve for x
    x = 65,936,136,019,018,187,276,288/287,035,392,006.20
  6. Step 6: Final answer
    x = 229,714,306,511.70

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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.