Home / 790,566,569.70-1,090,981,969.61-438,165,312.10

Finding the Fourth Proportional to 790,566,569.70, 1,090,981,969.61 and 438,165,312.10

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Solution

The fourth proportional to 790,566,569.70, 1,090,981,969.61 and 438,165,312.10 is: 604,668,188.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,566,569.70 : 1,090,981,969.61 = 438,165,312.10 : x
  2. Step 2: Convert to fraction form
    790,566,569.70/1,090,981,969.61 = 438,165,312.10/x
  3. Step 3: Cross multiply
    790,566,569.70x = 1,090,981,969.61 × 438,165,312.10
  4. Step 4: Simplify right side
    790,566,569.70x = 478,030,455,209,638,336
  5. Step 5: Solve for x
    x = 478,030,455,209,638,336/790,566,569.70
  6. Step 6: Final answer
    x = 604,668,188.02

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1.5x scale

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.