Home / 43,140,643.20-64,710,964.80-38,437,718.40

Finding the Fourth Proportional to 43,140,643.20, 64,710,964.80 and 38,437,718.40

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Solution

The fourth proportional to 43,140,643.20, 64,710,964.80 and 38,437,718.40 is: 57,656,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140,643.20 : 64,710,964.80 = 38,437,718.40 : x
  2. Step 2: Convert to fraction form
    43,140,643.20/64,710,964.80 = 38,437,718.40/x
  3. Step 3: Cross multiply
    43,140,643.20x = 64,710,964.80 × 38,437,718.40
  4. Step 4: Simplify right side
    43,140,643.20x = 2,487,341,842,374,712
  5. Step 5: Solve for x
    x = 2,487,341,842,374,712/43,140,643.20
  6. Step 6: Final answer
    x = 57,656,577.60

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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.