Home / 785,749,457.02-1,178,299,907.94-268,221,582.40

Finding the Fourth Proportional to 785,749,457.02, 1,178,299,907.94 and 268,221,582.40

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Solution

The fourth proportional to 785,749,457.02, 1,178,299,907.94 and 268,221,582.40 is: 402,221,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,749,457.02 : 1,178,299,907.94 = 268,221,582.40 : x
  2. Step 2: Convert to fraction form
    785,749,457.02/1,178,299,907.94 = 268,221,582.40/x
  3. Step 3: Cross multiply
    785,749,457.02x = 1,178,299,907.94 × 268,221,582.40
  4. Step 4: Simplify right side
    785,749,457.02x = 316,045,465,849,441,152
  5. Step 5: Solve for x
    x = 316,045,465,849,441,152/785,749,457.02
  6. Step 6: Final answer
    x = 402,221,678.97

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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.