Home / 86,943,988.40-130,415,982.60-52,931,764.40

Finding the Fourth Proportional to 86,943,988.40, 130,415,982.60 and 52,931,764.40

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Solution

The fourth proportional to 86,943,988.40, 130,415,982.60 and 52,931,764.40 is: 79,397,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943,988.40 : 130,415,982.60 = 52,931,764.40 : x
  2. Step 2: Convert to fraction form
    86,943,988.40/130,415,982.60 = 52,931,764.40/x
  3. Step 3: Cross multiply
    86,943,988.40x = 130,415,982.60 × 52,931,764.40
  4. Step 4: Simplify right side
    86,943,988.40x = 6,903,148,064,977,699
  5. Step 5: Solve for x
    x = 6,903,148,064,977,699/86,943,988.40
  6. Step 6: Final answer
    x = 79,397,646.60

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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.