Home / 563,506,307.61-777,639,619.32-312,610,705.93

Finding the Fourth Proportional to 563,506,307.61, 777,639,619.32 and 312,610,705.93

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Solution

The fourth proportional to 563,506,307.61, 777,639,619.32 and 312,610,705.93 is: 431,403,281.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,506,307.61 : 777,639,619.32 = 312,610,705.93 : x
  2. Step 2: Convert to fraction form
    563,506,307.61/777,639,619.32 = 312,610,705.93/x
  3. Step 3: Cross multiply
    563,506,307.61x = 777,639,619.32 × 312,610,705.93
  4. Step 4: Simplify right side
    563,506,307.61x = 243,098,470,355,733,728
  5. Step 5: Solve for x
    x = 243,098,470,355,733,728/563,506,307.61
  6. Step 6: Final answer
    x = 431,403,281.69

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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.