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Finding the Fourth Proportional to 663,510,803, 915,645,302.08 and 370,155,371

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Solution

The fourth proportional to 663,510,803, 915,645,302.08 and 370,155,371 is: 510,814,631.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,510,803 : 915,645,302.08 = 370,155,371 : x
  2. Step 2: Convert to fraction form
    663,510,803/915,645,302.08 = 370,155,371/x
  3. Step 3: Cross multiply
    663,510,803x = 915,645,302.08 × 370,155,371
  4. Step 4: Simplify right side
    663,510,803x = 338,931,026,495,829,504
  5. Step 5: Solve for x
    x = 338,931,026,495,829,504/663,510,803
  6. Step 6: Final answer
    x = 510,814,631.75

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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.