Home / 21,021,883,886.64-31,528,807,193.16-6,299,905,304.64

Finding the Fourth Proportional to 21,021,883,886.64, 31,528,807,193.16 and 6,299,905,304.64

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Solution

The fourth proportional to 21,021,883,886.64, 31,528,807,193.16 and 6,299,905,304.64 is: 9,448,653,639.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,883,886.64 : 31,528,807,193.16 = 6,299,905,304.64 : x
  2. Step 2: Convert to fraction form
    21,021,883,886.64/31,528,807,193.16 = 6,299,905,304.64/x
  3. Step 3: Cross multiply
    21,021,883,886.64x = 31,528,807,193.16 × 6,299,905,304.64
  4. Step 4: Simplify right side
    21,021,883,886.64x = 198,628,499,685,160,484,864
  5. Step 5: Solve for x
    x = 198,628,499,685,160,484,864/21,021,883,886.64
  6. Step 6: Final answer
    x = 9,448,653,639.05

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Double scale
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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.