Home / 666,928,302.28-920,366,461.05-369,575,511.37

Finding the Fourth Proportional to 666,928,302.28, 920,366,461.05 and 369,575,511.37

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Solution

The fourth proportional to 666,928,302.28, 920,366,461.05 and 369,575,511.37 is: 510,017,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,928,302.28 : 920,366,461.05 = 369,575,511.37 : x
  2. Step 2: Convert to fraction form
    666,928,302.28/920,366,461.05 = 369,575,511.37/x
  3. Step 3: Cross multiply
    666,928,302.28x = 920,366,461.05 × 369,575,511.37
  4. Step 4: Simplify right side
    666,928,302.28x = 340,144,905,490,350,912
  5. Step 5: Solve for x
    x = 340,144,905,490,350,912/666,928,302.28
  6. Step 6: Final answer
    x = 510,017,200.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.