Finding the Fourth Proportional to 654,984,263.93, 903,890,865.35 and 357,638,295.65
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Solution
The fourth proportional to 654,984,263.93, 903,890,865.35 and 357,638,295.65 is: 493,547,717.61
Step by Step Solution
- Step 1: Write the proportion equation
654,984,263.93 : 903,890,865.35 = 357,638,295.65 : x - Step 2: Convert to fraction form
654,984,263.93/903,890,865.35 = 357,638,295.65/x - Step 3: Cross multiply
654,984,263.93x = 903,890,865.35 × 357,638,295.65 - Step 4: Simplify right side
654,984,263.93x = 323,265,988,533,745,152 - Step 5: Solve for x
x = 323,265,988,533,745,152/654,984,263.93 - Step 6: Final answer
x = 493,547,717.61
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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.