Home / 130,896,935.87-180,638,318.43-72,158,312.21

Finding the Fourth Proportional to 130,896,935.87, 180,638,318.43 and 72,158,312.21

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Solution

The fourth proportional to 130,896,935.87, 180,638,318.43 and 72,158,312.21 is: 99,578,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,896,935.87 : 180,638,318.43 = 72,158,312.21 : x
  2. Step 2: Convert to fraction form
    130,896,935.87/180,638,318.43 = 72,158,312.21/x
  3. Step 3: Cross multiply
    130,896,935.87x = 180,638,318.43 × 72,158,312.21
  4. Step 4: Simplify right side
    130,896,935.87x = 13,034,556,177,458,146
  5. Step 5: Solve for x
    x = 13,034,556,177,458,146/130,896,935.87
  6. Step 6: Final answer
    x = 99,578,772.35

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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.