Home / 130,830,421.60-196,245,632.40-79,686,114.40

Finding the Fourth Proportional to 130,830,421.60, 196,245,632.40 and 79,686,114.40

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Solution

The fourth proportional to 130,830,421.60, 196,245,632.40 and 79,686,114.40 is: 119,529,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,830,421.60 : 196,245,632.40 = 79,686,114.40 : x
  2. Step 2: Convert to fraction form
    130,830,421.60/196,245,632.40 = 79,686,114.40/x
  3. Step 3: Cross multiply
    130,830,421.60x = 196,245,632.40 × 79,686,114.40
  4. Step 4: Simplify right side
    130,830,421.60x = 15,638,051,913,926,748
  5. Step 5: Solve for x
    x = 15,638,051,913,926,748/130,830,421.60
  6. Step 6: Final answer
    x = 119,529,171.60

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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.