Home / 291,357,712.80-437,036,569.20-289,657,101.60

Finding the Fourth Proportional to 291,357,712.80, 437,036,569.20 and 289,657,101.60

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Solution

The fourth proportional to 291,357,712.80, 437,036,569.20 and 289,657,101.60 is: 434,485,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,357,712.80 : 437,036,569.20 = 289,657,101.60 : x
  2. Step 2: Convert to fraction form
    291,357,712.80/437,036,569.20 = 289,657,101.60/x
  3. Step 3: Cross multiply
    291,357,712.80x = 437,036,569.20 × 289,657,101.60
  4. Step 4: Simplify right side
    291,357,712.80x = 126,590,745,927,679,840
  5. Step 5: Solve for x
    x = 126,590,745,927,679,840/291,357,712.80
  6. Step 6: Final answer
    x = 434,485,652.40

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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.