Home / 86,908,101.60-130,362,152.40-77,334,290.40

Finding the Fourth Proportional to 86,908,101.60, 130,362,152.40 and 77,334,290.40

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Solution

The fourth proportional to 86,908,101.60, 130,362,152.40 and 77,334,290.40 is: 116,001,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,908,101.60 : 130,362,152.40 = 77,334,290.40 : x
  2. Step 2: Convert to fraction form
    86,908,101.60/130,362,152.40 = 77,334,290.40/x
  3. Step 3: Cross multiply
    86,908,101.60x = 130,362,152.40 × 77,334,290.40
  4. Step 4: Simplify right side
    86,908,101.60x = 10,081,464,550,870,658
  5. Step 5: Solve for x
    x = 10,081,464,550,870,658/86,908,101.60
  6. Step 6: Final answer
    x = 116,001,435.60

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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.