Home / 1,042,467,020.48-1,437,943,411.68-640,404,827.84

Finding the Fourth Proportional to 1,042,467,020.48, 1,437,943,411.68 and 640,404,827.84

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Solution

The fourth proportional to 1,042,467,020.48, 1,437,943,411.68 and 640,404,827.84 is: 883,352,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,467,020.48 : 1,437,943,411.68 = 640,404,827.84 : x
  2. Step 2: Convert to fraction form
    1,042,467,020.48/1,437,943,411.68 = 640,404,827.84/x
  3. Step 3: Cross multiply
    1,042,467,020.48x = 1,437,943,411.68 × 640,404,827.84
  4. Step 4: Simplify right side
    1,042,467,020.48x = 920,865,903,000,592,768
  5. Step 5: Solve for x
    x = 920,865,903,000,592,768/1,042,467,020.48
  6. Step 6: Final answer
    x = 883,352,552.08

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Double scale
Find fourth proportional to 1,042,467,021.48, 1,437,943,413.06 and 640,404,828.84
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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.