Home / 1,223,657,353,943.90-1,688,652,398,307.10-667,474,601,428.82

Finding the Fourth Proportional to 1,223,657,353,943.90, 1,688,652,398,307.10 and 667,474,601,428.82

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Solution

The fourth proportional to 1,223,657,353,943.90, 1,688,652,398,307.10 and 667,474,601,428.82 is: 921,117,813,642.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,657,353,943.90 : 1,688,652,398,307.10 = 667,474,601,428.82 : x
  2. Step 2: Convert to fraction form
    1,223,657,353,943.90/1,688,652,398,307.10 = 667,474,601,428.82/x
  3. Step 3: Cross multiply
    1,223,657,353,943.90x = 1,688,652,398,307.10 × 667,474,601,428.82
  4. Step 4: Simplify right side
    1,223,657,353,943.90x = 1,127,132,586,511,852,587,974,656
  5. Step 5: Solve for x
    x = 1,127,132,586,511,852,587,974,656/1,223,657,353,943.90
  6. Step 6: Final answer
    x = 921,117,813,642.08

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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.