Home / 522,066,302.40-720,437,120.44-287,117,048.32

Finding the Fourth Proportional to 522,066,302.40, 720,437,120.44 and 287,117,048.32

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Solution

The fourth proportional to 522,066,302.40, 720,437,120.44 and 287,117,048.32 is: 396,213,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,066,302.40 : 720,437,120.44 = 287,117,048.32 : x
  2. Step 2: Convert to fraction form
    522,066,302.40/720,437,120.44 = 287,117,048.32/x
  3. Step 3: Cross multiply
    522,066,302.40x = 720,437,120.44 × 287,117,048.32
  4. Step 4: Simplify right side
    522,066,302.40x = 206,849,779,520,893,152
  5. Step 5: Solve for x
    x = 206,849,779,520,893,152/522,066,302.40
  6. Step 6: Final answer
    x = 396,213,619.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.