Home / 386,190,307.80-578,837,564.10-156,008,266.20

Finding the Fourth Proportional to 386,190,307.80, 578,837,564.10 and 156,008,266.20

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Solution

The fourth proportional to 386,190,307.80, 578,837,564.10 and 156,008,266.20 is: 233,831,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,190,307.80 : 578,837,564.10 = 156,008,266.20 : x
  2. Step 2: Convert to fraction form
    386,190,307.80/578,837,564.10 = 156,008,266.20/x
  3. Step 3: Cross multiply
    386,190,307.80x = 578,837,564.10 × 156,008,266.20
  4. Step 4: Simplify right side
    386,190,307.80x = 90,303,444,786,672,368
  5. Step 5: Solve for x
    x = 90,303,444,786,672,368/386,190,307.80
  6. Step 6: Final answer
    x = 233,831,463.30

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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.