Home / 1,277,208,047.20-1,915,812,070.80-357,082,909.60

Finding the Fourth Proportional to 1,277,208,047.20, 1,915,812,070.80 and 357,082,909.60

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Solution

The fourth proportional to 1,277,208,047.20, 1,915,812,070.80 and 357,082,909.60 is: 535,624,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,208,047.20 : 1,915,812,070.80 = 357,082,909.60 : x
  2. Step 2: Convert to fraction form
    1,277,208,047.20/1,915,812,070.80 = 357,082,909.60/x
  3. Step 3: Cross multiply
    1,277,208,047.20x = 1,915,812,070.80 × 357,082,909.60
  4. Step 4: Simplify right side
    1,277,208,047.20x = 684,103,748,488,065,280
  5. Step 5: Solve for x
    x = 684,103,748,488,065,280/1,277,208,047.20
  6. Step 6: Final answer
    x = 535,624,364.40

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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.