Home / 21,088,835,129.64-29,100,668,921.48-12,513,784,095.66

Finding the Fourth Proportional to 21,088,835,129.64, 29,100,668,921.48 and 12,513,784,095.66

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Solution

The fourth proportional to 21,088,835,129.64, 29,100,668,921.48 and 12,513,784,095.66 is: 17,267,880,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088,835,129.64 : 29,100,668,921.48 = 12,513,784,095.66 : x
  2. Step 2: Convert to fraction form
    21,088,835,129.64/29,100,668,921.48 = 12,513,784,095.66/x
  3. Step 3: Cross multiply
    21,088,835,129.64x = 29,100,668,921.48 × 12,513,784,095.66
  4. Step 4: Simplify right side
    21,088,835,129.64x = 364,159,487,922,683,641,856
  5. Step 5: Solve for x
    x = 364,159,487,922,683,641,856/21,088,835,129.64
  6. Step 6: Final answer
    x = 17,267,880,643.20

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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.