Finding the Fourth Proportional to 93,312,047.20, 139,968,070.80 and 70,637,231.20
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Solution
The fourth proportional to 93,312,047.20, 139,968,070.80 and 70,637,231.20 is: 105,955,846.80
Step by Step Solution
- Step 1: Write the proportion equation
93,312,047.20 : 139,968,070.80 = 70,637,231.20 : x - Step 2: Convert to fraction form
93,312,047.20/139,968,070.80 = 70,637,231.20/x - Step 3: Cross multiply
93,312,047.20x = 139,968,070.80 × 70,637,231.20 - Step 4: Simplify right side
93,312,047.20x = 9,886,956,977,717,570 - Step 5: Solve for x
x = 9,886,956,977,717,570/93,312,047.20 - Step 6: Final answer
x = 105,955,846.80
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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.