Home / 869,077,685.70-1,303,616,528.55-409,912,661.70

Finding the Fourth Proportional to 869,077,685.70, 1,303,616,528.55 and 409,912,661.70

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Solution

The fourth proportional to 869,077,685.70, 1,303,616,528.55 and 409,912,661.70 is: 614,868,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,077,685.70 : 1,303,616,528.55 = 409,912,661.70 : x
  2. Step 2: Convert to fraction form
    869,077,685.70/1,303,616,528.55 = 409,912,661.70/x
  3. Step 3: Cross multiply
    869,077,685.70x = 1,303,616,528.55 × 409,912,661.70
  4. Step 4: Simplify right side
    869,077,685.70x = 534,368,921,054,044,480
  5. Step 5: Solve for x
    x = 534,368,921,054,044,480/869,077,685.70
  6. Step 6: Final answer
    x = 614,868,992.55

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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.