Home / 28,315,966,323,376-39,075,617,665,056-15,815,878,785,979

Finding the Fourth Proportional to 28,315,966,323,376, 39,075,617,665,056 and 15,815,878,785,979

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Solution

The fourth proportional to 28,315,966,323,376, 39,075,617,665,056 and 15,815,878,785,979 is: 21,825,680,445,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315,966,323,376 : 39,075,617,665,056 = 15,815,878,785,979 : x
  2. Step 2: Convert to fraction form
    28,315,966,323,376/39,075,617,665,056 = 15,815,878,785,979/x
  3. Step 3: Cross multiply
    28,315,966,323,376x = 39,075,617,665,056 × 15,815,878,785,979
  4. Step 4: Simplify right side
    28,315,966,323,376x = 618,015,232,477,785,431,711,154,176
  5. Step 5: Solve for x
    x = 618,015,232,477,785,431,711,154,176/28,315,966,323,376
  6. Step 6: Final answer
    x = 21,825,680,445,437.89

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Double scale
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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.