Home / 130,507,478.98-180,105,056.08-74,763,672.91

Finding the Fourth Proportional to 130,507,478.98, 180,105,056.08 and 74,763,672.91

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Solution

The fourth proportional to 130,507,478.98, 180,105,056.08 and 74,763,672.91 is: 103,176,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,507,478.98 : 180,105,056.08 = 74,763,672.91 : x
  2. Step 2: Convert to fraction form
    130,507,478.98/180,105,056.08 = 74,763,672.91/x
  3. Step 3: Cross multiply
    130,507,478.98x = 180,105,056.08 × 74,763,672.91
  4. Step 4: Simplify right side
    130,507,478.98x = 13,465,315,501,565,154
  5. Step 5: Solve for x
    x = 13,465,315,501,565,154/130,507,478.98
  6. Step 6: Final answer
    x = 103,176,581.20

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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.