Finding the Fourth Proportional to 652,480,444.13, 900,422,962.74 and 355,124,818.40
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Solution
The fourth proportional to 652,480,444.13, 900,422,962.74 and 355,124,818.40 is: 490,072,222.09
Step by Step Solution
- Step 1: Write the proportion equation
652,480,444.13 : 900,422,962.74 = 355,124,818.40 : x - Step 2: Convert to fraction form
652,480,444.13/900,422,962.74 = 355,124,818.40/x - Step 3: Cross multiply
652,480,444.13x = 900,422,962.74 × 355,124,818.40 - Step 4: Simplify right side
652,480,444.13x = 319,762,541,121,730,368 - Step 5: Solve for x
x = 319,762,541,121,730,368/652,480,444.13 - Step 6: Final answer
x = 490,072,222.09
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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.