Home / 869,077,673.70-1,303,616,510.55-409,912,649.70

Finding the Fourth Proportional to 869,077,673.70, 1,303,616,510.55 and 409,912,649.70

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Solution

The fourth proportional to 869,077,673.70, 1,303,616,510.55 and 409,912,649.70 is: 614,868,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,077,673.70 : 1,303,616,510.55 = 409,912,649.70 : x
  2. Step 2: Convert to fraction form
    869,077,673.70/1,303,616,510.55 = 409,912,649.70/x
  3. Step 3: Cross multiply
    869,077,673.70x = 1,303,616,510.55 × 409,912,649.70
  4. Step 4: Simplify right side
    869,077,673.70x = 534,368,898,032,218,496
  5. Step 5: Solve for x
    x = 534,368,898,032,218,496/869,077,673.70
  6. Step 6: Final answer
    x = 614,868,974.55

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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.