Home / 15,825,071,585.12-21,838,641,761.12-8,688,947,612.32

Finding the Fourth Proportional to 15,825,071,585.12, 21,838,641,761.12 and 8,688,947,612.32

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Solution

The fourth proportional to 15,825,071,585.12, 21,838,641,761.12 and 8,688,947,612.32 is: 11,990,771,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,825,071,585.12 : 21,838,641,761.12 = 8,688,947,612.32 : x
  2. Step 2: Convert to fraction form
    15,825,071,585.12/21,838,641,761.12 = 8,688,947,612.32/x
  3. Step 3: Cross multiply
    15,825,071,585.12x = 21,838,641,761.12 × 8,688,947,612.32
  4. Step 4: Simplify right side
    15,825,071,585.12x = 189,754,814,186,595,450,880
  5. Step 5: Solve for x
    x = 189,754,814,186,595,450,880/15,825,071,585.12
  6. Step 6: Final answer
    x = 11,990,771,300.21

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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.