Home / 286,210,116.80-429,528,858.78-212,603,865.26

Finding the Fourth Proportional to 286,210,116.80, 429,528,858.78 and 212,603,865.26

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Solution

The fourth proportional to 286,210,116.80, 429,528,858.78 and 212,603,865.26 is: 319,064,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,210,116.80 : 429,528,858.78 = 212,603,865.26 : x
  2. Step 2: Convert to fraction form
    286,210,116.80/429,528,858.78 = 212,603,865.26/x
  3. Step 3: Cross multiply
    286,210,116.80x = 429,528,858.78 × 212,603,865.26
  4. Step 4: Simplify right side
    286,210,116.80x = 91,319,495,617,344,672
  5. Step 5: Solve for x
    x = 91,319,495,617,344,672/286,210,116.80
  6. Step 6: Final answer
    x = 319,064,527.27

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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.