Home / 1,147,397,117.15-1,721,095,675.73-371,121,248.45

Finding the Fourth Proportional to 1,147,397,117.15, 1,721,095,675.73 and 371,121,248.45

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Solution

The fourth proportional to 1,147,397,117.15, 1,721,095,675.73 and 371,121,248.45 is: 556,681,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,397,117.15 : 1,721,095,675.73 = 371,121,248.45 : x
  2. Step 2: Convert to fraction form
    1,147,397,117.15/1,721,095,675.73 = 371,121,248.45/x
  3. Step 3: Cross multiply
    1,147,397,117.15x = 1,721,095,675.73 × 371,121,248.45
  4. Step 4: Simplify right side
    1,147,397,117.15x = 638,735,175,878,813,952
  5. Step 5: Solve for x
    x = 638,735,175,878,813,952/1,147,397,117.15
  6. Step 6: Final answer
    x = 556,681,872.68

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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.