Home / 1,010,640,109.80-1,515,960,164.70-492,803,999.40

Finding the Fourth Proportional to 1,010,640,109.80, 1,515,960,164.70 and 492,803,999.40

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Solution

The fourth proportional to 1,010,640,109.80, 1,515,960,164.70 and 492,803,999.40 is: 739,205,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,640,109.80 : 1,515,960,164.70 = 492,803,999.40 : x
  2. Step 2: Convert to fraction form
    1,010,640,109.80/1,515,960,164.70 = 492,803,999.40/x
  3. Step 3: Cross multiply
    1,010,640,109.80x = 1,515,960,164.70 × 492,803,999.40
  4. Step 4: Simplify right side
    1,010,640,109.80x = 747,071,232,095,242,752
  5. Step 5: Solve for x
    x = 747,071,232,095,242,752/1,010,640,109.80
  6. Step 6: Final answer
    x = 739,205,999.10

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1.5x scale

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.