Home / 86,943,904.90-130,415,857.35-52,931,680.90

Finding the Fourth Proportional to 86,943,904.90, 130,415,857.35 and 52,931,680.90

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Solution

The fourth proportional to 86,943,904.90, 130,415,857.35 and 52,931,680.90 is: 79,397,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943,904.90 : 130,415,857.35 = 52,931,680.90 : x
  2. Step 2: Convert to fraction form
    86,943,904.90/130,415,857.35 = 52,931,680.90/x
  3. Step 3: Cross multiply
    86,943,904.90x = 130,415,857.35 × 52,931,680.90
  4. Step 4: Simplify right side
    86,943,904.90x = 6,903,130,545,550,119
  5. Step 5: Solve for x
    x = 6,903,130,545,550,119/86,943,904.90
  6. Step 6: Final answer
    x = 79,397,521.35

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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.