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Finding the Fourth Proportional to 1,047,780,368.02, 1,571,670,553.72 and 425,849,888.34

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Solution

The fourth proportional to 1,047,780,368.02, 1,571,670,553.72 and 425,849,888.34 is: 638,774,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,780,368.02 : 1,571,670,553.72 = 425,849,888.34 : x
  2. Step 2: Convert to fraction form
    1,047,780,368.02/1,571,670,553.72 = 425,849,888.34/x
  3. Step 3: Cross multiply
    1,047,780,368.02x = 1,571,670,553.72 × 425,849,888.34
  4. Step 4: Simplify right side
    1,047,780,368.02x = 669,295,729,808,928,000
  5. Step 5: Solve for x
    x = 669,295,729,808,928,000/1,047,780,368.02
  6. Step 6: Final answer
    x = 638,774,833.20

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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.