Home / 130,657,914.51-180,312,680.16-71,116,333.11

Finding the Fourth Proportional to 130,657,914.51, 180,312,680.16 and 71,116,333.11

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Solution

The fourth proportional to 130,657,914.51, 180,312,680.16 and 71,116,333.11 is: 98,143,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,657,914.51 : 180,312,680.16 = 71,116,333.11 : x
  2. Step 2: Convert to fraction form
    130,657,914.51/180,312,680.16 = 71,116,333.11/x
  3. Step 3: Cross multiply
    130,657,914.51x = 180,312,680.16 × 71,116,333.11
  4. Step 4: Simplify right side
    130,657,914.51x = 12,823,176,626,215,448
  5. Step 5: Solve for x
    x = 12,823,176,626,215,448/130,657,914.51
  6. Step 6: Final answer
    x = 98,143,129.52

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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.