Home / 438,620,802.30-657,931,203.45-369,746,048.70

Finding the Fourth Proportional to 438,620,802.30, 657,931,203.45 and 369,746,048.70

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Solution

The fourth proportional to 438,620,802.30, 657,931,203.45 and 369,746,048.70 is: 554,619,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,620,802.30 : 657,931,203.45 = 369,746,048.70 : x
  2. Step 2: Convert to fraction form
    438,620,802.30/657,931,203.45 = 369,746,048.70/x
  3. Step 3: Cross multiply
    438,620,802.30x = 657,931,203.45 × 369,746,048.70
  4. Step 4: Simplify right side
    438,620,802.30x = 243,267,462,792,073,312
  5. Step 5: Solve for x
    x = 243,267,462,792,073,312/438,620,802.30
  6. Step 6: Final answer
    x = 554,619,073.05

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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.