Home / 99,668,421.60-149,544,622.80-54,262,802.40

Finding the Fourth Proportional to 99,668,421.60, 149,544,622.80 and 54,262,802.40

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Solution

The fourth proportional to 99,668,421.60, 149,544,622.80 and 54,262,802.40 is: 81,417,064.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,668,421.60 : 149,544,622.80 = 54,262,802.40 : x
  2. Step 2: Convert to fraction form
    99,668,421.60/149,544,622.80 = 54,262,802.40/x
  3. Step 3: Cross multiply
    99,668,421.60x = 149,544,622.80 × 54,262,802.40
  4. Step 4: Simplify right side
    99,668,421.60x = 8,114,710,316,978,935
  5. Step 5: Solve for x
    x = 8,114,710,316,978,935/99,668,421.60
  6. Step 6: Final answer
    x = 81,417,064.57

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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.