Home / 154,602,417.30-231,931,619.55-77,731,991.70

Finding the Fourth Proportional to 154,602,417.30, 231,931,619.55 and 77,731,991.70

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Solution

The fourth proportional to 154,602,417.30, 231,931,619.55 and 77,731,991.70 is: 116,612,062.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,602,417.30 : 231,931,619.55 = 77,731,991.70 : x
  2. Step 2: Convert to fraction form
    154,602,417.30/231,931,619.55 = 77,731,991.70/x
  3. Step 3: Cross multiply
    154,602,417.30x = 231,931,619.55 × 77,731,991.70
  4. Step 4: Simplify right side
    154,602,417.30x = 18,028,506,725,828,160
  5. Step 5: Solve for x
    x = 18,028,506,725,828,160/154,602,417.30
  6. Step 6: Final answer
    x = 116,612,062.35

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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.