Home / 1,128,774,590.40-1,692,502,898.76-437,874,521.52

Finding the Fourth Proportional to 1,128,774,590.40, 1,692,502,898.76 and 437,874,521.52

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Solution

The fourth proportional to 1,128,774,590.40, 1,692,502,898.76 and 437,874,521.52 is: 656,556,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,774,590.40 : 1,692,502,898.76 = 437,874,521.52 : x
  2. Step 2: Convert to fraction form
    1,128,774,590.40/1,692,502,898.76 = 437,874,521.52/x
  3. Step 3: Cross multiply
    1,128,774,590.40x = 1,692,502,898.76 × 437,874,521.52
  4. Step 4: Simplify right side
    1,128,774,590.40x = 741,103,896,965,747,968
  5. Step 5: Solve for x
    x = 741,103,896,965,747,968/1,128,774,590.40
  6. Step 6: Final answer
    x = 656,556,147.94

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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.