Home / 1,010,640,079.80-1,515,960,119.70-492,803,969.40

Finding the Fourth Proportional to 1,010,640,079.80, 1,515,960,119.70 and 492,803,969.40

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Solution

The fourth proportional to 1,010,640,079.80, 1,515,960,119.70 and 492,803,969.40 is: 739,205,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,640,079.80 : 1,515,960,119.70 = 492,803,969.40 : x
  2. Step 2: Convert to fraction form
    1,010,640,079.80/1,515,960,119.70 = 492,803,969.40/x
  3. Step 3: Cross multiply
    1,010,640,079.80x = 1,515,960,119.70 × 492,803,969.40
  4. Step 4: Simplify right side
    1,010,640,079.80x = 747,071,164,440,259,072
  5. Step 5: Solve for x
    x = 747,071,164,440,259,072/1,010,640,079.80
  6. Step 6: Final answer
    x = 739,205,954.10

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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.