Home / 130,914,111.36-180,653,149.08-72,173,565.84

Finding the Fourth Proportional to 130,914,111.36, 180,653,149.08 and 72,173,565.84

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Solution

The fourth proportional to 130,914,111.36, 180,653,149.08 and 72,173,565.84 is: 99,594,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,914,111.36 : 180,653,149.08 = 72,173,565.84 : x
  2. Step 2: Convert to fraction form
    130,914,111.36/180,653,149.08 = 72,173,565.84/x
  3. Step 3: Cross multiply
    130,914,111.36x = 180,653,149.08 × 72,173,565.84
  4. Step 4: Simplify right side
    130,914,111.36x = 13,038,381,949,328,718
  5. Step 5: Solve for x
    x = 13,038,381,949,328,718/130,914,111.36
  6. Step 6: Final answer
    x = 99,594,931.47

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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.