Home / 386,190,400.80-578,837,703.60-156,008,359.20

Finding the Fourth Proportional to 386,190,400.80, 578,837,703.60 and 156,008,359.20

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Solution

The fourth proportional to 386,190,400.80, 578,837,703.60 and 156,008,359.20 is: 233,831,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,190,400.80 : 578,837,703.60 = 156,008,359.20 : x
  2. Step 2: Convert to fraction form
    386,190,400.80/578,837,703.60 = 156,008,359.20/x
  3. Step 3: Cross multiply
    386,190,400.80x = 578,837,703.60 × 156,008,359.20
  4. Step 4: Simplify right side
    386,190,400.80x = 90,303,520,381,731,936
  5. Step 5: Solve for x
    x = 90,303,520,381,731,936/386,190,400.80
  6. Step 6: Final answer
    x = 233,831,602.74

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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.