Home / 866,152,814-1,298,710,360.80-275,687,986.40

Finding the Fourth Proportional to 866,152,814, 1,298,710,360.80 and 275,687,986.40

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Solution

The fourth proportional to 866,152,814, 1,298,710,360.80 and 275,687,986.40 is: 413,366,831.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,152,814 : 1,298,710,360.80 = 275,687,986.40 : x
  2. Step 2: Convert to fraction form
    866,152,814/1,298,710,360.80 = 275,687,986.40/x
  3. Step 3: Cross multiply
    866,152,814x = 1,298,710,360.80 × 275,687,986.40
  4. Step 4: Simplify right side
    866,152,814x = 358,038,844,285,769,472
  5. Step 5: Solve for x
    x = 358,038,844,285,769,472/866,152,814
  6. Step 6: Final answer
    x = 413,366,831.46

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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.