Home / 523,590,948.81-722,557,699.43-288,636,452.01

Finding the Fourth Proportional to 523,590,948.81, 722,557,699.43 and 288,636,452.01

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Solution

The fourth proportional to 523,590,948.81, 722,557,699.43 and 288,636,452.01 is: 398,319,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,590,948.81 : 722,557,699.43 = 288,636,452.01 : x
  2. Step 2: Convert to fraction form
    523,590,948.81/722,557,699.43 = 288,636,452.01/x
  3. Step 3: Cross multiply
    523,590,948.81x = 722,557,699.43 × 288,636,452.01
  4. Step 4: Simplify right side
    523,590,948.81x = 208,556,490,735,983,168
  5. Step 5: Solve for x
    x = 208,556,490,735,983,168/523,590,948.81
  6. Step 6: Final answer
    x = 398,319,511.08

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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.