Home / 15,656,810,816.40-21,606,402,453.48-8,616,280,448.40

Finding the Fourth Proportional to 15,656,810,816.40, 21,606,402,453.48 and 8,616,280,448.40

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Solution

The fourth proportional to 15,656,810,816.40, 21,606,402,453.48 and 8,616,280,448.40 is: 11,890,468,959.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656,810,816.40 : 21,606,402,453.48 = 8,616,280,448.40 : x
  2. Step 2: Convert to fraction form
    15,656,810,816.40/21,606,402,453.48 = 8,616,280,448.40/x
  3. Step 3: Cross multiply
    15,656,810,816.40x = 21,606,402,453.48 × 8,616,280,448.40
  4. Step 4: Simplify right side
    15,656,810,816.40x = 186,166,823,020,181,487,616
  5. Step 5: Solve for x
    x = 186,166,823,020,181,487,616/15,656,810,816.40
  6. Step 6: Final answer
    x = 11,890,468,959.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.